1. Award: 10.00 points A sample of 35 observations is selected from a normal population. The sample mean is 28, and the population standard deviation is 6. Conduct the following test of hypothesis using the 0.05 significance level. H0 : 26 H1 : > 26 a. Is this a one- or two-tailed test? "Two-tailed"-the alternate hypothesis is different from direction. "One-tailed"-the alternate hypothesis is greater than direction. b. What is the decision rule? (Round your answer to 3 decimal places.) (Click to select) H0, when z > c. What is the value of the test statistic? (Round your answer to 2 decimal places.) Value of the test statistic d. What is your decision regarding H0? Do not reject Reject There is (Click to select) evidence to conclude that the population mean is greater than 26. e. What is the p-value? (Round your answer to 4 decimal places.) p-value References Worksheet 2. Award: 10.00 points Difficulty: 2 Intermediate Learning Objective: 10-05 Conduct a test of a hypothesis about a population mean. At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was told, \"You can average $82 a day in tips.\" Assume the population of daily tips is normally distributed with a standard deviation of $3.26. Over the first 44 days she was employed at the restaurant, the mean daily amount of her tips was $84.61. At the 0.02 significance level, can Ms. Brigden conclude that her daily tips average more than $82? a. State the null hypothesis and the alternate hypothesis. H0: 82 ; H1: > 82 H0: = 82 ; H1: 82 H0: 82 ; H1: < 82 H0: >82 ; H1: = 82 b. State the decision rule. Reject H0 if z > 2.05 Reject H1 if z < 2.05 Reject H0 if z < 2.05 Reject H1 if z > 2.05 c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic d. What is your decision regarding H0? Reject H0 Do not reject H0 e. What is the p-value? (Round your answer to 4 decimal places.) p-value References Worksheet 3. Difficulty: 2 Intermediate Learning Objective: 10-05 Conduct a test of a hypothesis about a population mean. Award: 10.00 points The Rocky Mountain district sales manager of Rath Publishing Inc., a college textbook publishing company, claims that the sales representatives make an average of 44 sales calls per week on professors. Several reps say that this estimate is too low. To investigate, a random sample of 35 sales representatives reveals that the mean number of calls made last week was 45. The standard deviation of the sample is 4.5 calls. Using the 0.050 significance level, can we conclude that the mean number of calls per salesperson per week is more than 44? H0 : 44 H1 : > 44 1. Compute the value of the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic 2. What is your decision regarding H0? (Click to select) H0. The mean number of calls is (Click to select) than 44 per week. References Worksheet 4. Difficulty: 2 Intermediate Learning Objective: 10-07 Use a t statistic to test a hypothesis. Award: 10.00 points A United Nations report shows the mean family income for Mexican migrants to the United States is $28,540 per year. A FLOC (Farm Labor Organizing Committee) evaluation of 28 Mexican family units reveals a mean to be $34,120 with a sample standard deviation of $10,050. Does this information disagree with the United Nations report? Apply the 0.01 significance level. a. State the null hypothesis and the alternate hypothesis. H 0: = H 1: b. State the decision rule for .01 significance level. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) Reject H0 if t is not between and c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic d. Does this information disagree with the United Nations report? Apply the 0.01 significance level. (Click to select) . This data (Click to select) the report. References Worksheet Difficulty: 2 Intermediate Learning Objective: 10-07 Use a t statistic to test a hypothesis. 5. Award: 10.00 points The following information is available. H0 : 220 H1 : < 220 A sample of 64 observations is selected from a normal population. The sample mean is 215, and the population standard deviation is 15. Conduct the following test of hypothesis using the .025 significance level. a. Is this a one- or two-tailed test? One-tailed test Two-tailed test b. What is the decision rule? (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.) (Click to select) H0 when z < c. What is the value of the test statistic? (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.) Value of the test statistic d. What is your decision regarding H0? Do not reject Reject e. What is the p-value? (Round your answer to 4 decimal places.) p-value References Worksheet 6. Award: 10.00 points Difficulty: 2 Intermediate Learning Objective: 10-05 Conduct a test of a hypothesis about a population mean. Given the following hypotheses: H0 : 10 H1 : > 10 A random sample of 10 observations is selected from a normal population. The sample mean was 12 and the sample standard deviation 3. Using the .05 significance level: a. State the decision rule. (Round your answer to 3 decimal places.) Reject H0 if t > b. Compute the value of the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic c. What is your decision regarding the null hypothesis? H0. There is (Click to select) population mean is greater than 10. (Click to select) evidence to conclude that the References Worksheet 7. Difficulty: 2 Intermediate Learning Objective: 10-07 Use a t statistic to test a hypothesis. Award: 10.00 points Given the following hypotheses: H0 : = 400 H1 : 400 A random sample of 12 observations is selected from a normal population. The sample mean was 407 and the sample standard deviation 6. Using the .01 significance level: a. State the decision rule. (Negative amount should be indicated by a minus sign. Round your answers to 3 decimal places.) Reject H0 when the test statistic is (Click to select) the interval ( , b. Compute the value of the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic c. What is your decision regarding the null hypothesis? Do not reject ). Reject References Worksheet Difficulty: 2 Intermediate Learning Objective: 10-07 Use a t statistic to test a hypothesis. 1 a) one tailed b) Reject , 1.645 c) 2.83 d) Reject sufficient e) 0.0023 2) a) First option b) First option c) 5.31 d) Reject e) 0.0000 3) 1) 1.315 2) Do not reject, less than or equal to 4) a) 28540 28540 b) -2.771 and 2.771 c) 2.94 d) reject ho , does not agree 5) a) One tailed test b) 1.96 c) -2.67 d) Reject e) 0.0051 6) a) 1.833 b) 2.108 c) Reject, sufficient 7) a) not in the interval , -2.575 to 2.575 b) 4.041 c) Reject 1 a) one tailed b) Reject , 1.645 c) 2.83 d) Reject sufficient e) 0.0023 2) a) First option b) First option c) 5.31 d) Reject e) 0.0000 3) 1) 1.315 2) Do not reject, less than or equal to 4) a) 28540 28540 b) -2.771 and 2.771 c) 2.94 d) reject ho , does not agree 5) a) One tailed test b) 1.96 c) -2.67 d) Reject e) 0.0051 6) a) 1.833 b) 2.108 c) Reject, sufficient 7) a) not in the interval , -2.575 to 2.575 b) 4.041 c) Reject 1. Award: 10.00 points A sample of 35 observations is selected from a normal population. The sample mean is 28, and the population standard deviation is 6. Conduct the following test of hypothesis using the 0.05 significance level. H0 : 26 H1 : > 26 a. Is this a one- or two-tailed test? "One-tailed"-the alternate hypothesis is greater than direction. "Two-tailed"-the alternate hypothesis is different from direction. b. What is the decision rule? (Round your answer to 3 decimal places.) (Click to select) H0, when z > c. What is the value of the test statistic? (Round your answer to 2 decimal places.) Value of the test statistic d. What is your decision regarding H0? Do not reject Reject There is (Click to select) evidence to conclude that the population mean is greater than 26. e. What is the p-value? (Round your answer to 4 decimal places.) p-value References Worksheet 2. Award: 10.00 points Difficulty: 2 Intermediate Learning Objective: 10-05 Conduct a test of a hypothesis about a population mean. At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was told, \"You can average $82 a day in tips.\" Assume the population of daily tips is normally distributed with a standard deviation of $3.26. Over the first 44 days she was employed at the restaurant, the mean daily amount of her tips was $84.61. At the 0.02 significance level, can Ms. Brigden conclude that her daily tips average more than $82? a. State the null hypothesis and the alternate hypothesis. H0: 82 ; H1: < 82 H0: 82 ; H1: > 82 H0: = 82 ; H1: 82 H0: >82 ; H1: = 82 b. State the decision rule. Reject H0 if z > 2.05 Reject H1 if z > 2.05 Reject H1 if z < 2.05 Reject H0 if z < 2.05 c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic d. What is your decision regarding H0? Do not reject H0 Reject H0 e. What is the p-value? (Round your answer to 4 decimal places.) p-value References Worksheet 3. Difficulty: 2 Intermediate Learning Objective: 10-05 Conduct a test of a hypothesis about a population mean. Award: 10.00 points The Rocky Mountain district sales manager of Rath Publishing Inc., a college textbook publishing company, claims that the sales representatives make an average of 44 sales calls per week on professors. Several reps say that this estimate is too low. To investigate, a random sample of 35 sales representatives reveals that the mean number of calls made last week was 45. The standard deviation of the sample is 4.5 calls. Using the 0.050 significance level, can we conclude that the mean number of calls per salesperson per week is more than 44? H0 : 44 H1 : > 44 1. Compute the value of the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic 2. What is your decision regarding H0? (Click to select) H0. The mean number of calls is (Click to select) than 44 per week. References Worksheet 4. Difficulty: 2 Intermediate Learning Objective: 10-07 Use a t statistic to test a hypothesis. Award: 10.00 points A United Nations report shows the mean family income for Mexican migrants to the United States is $28,540 per year. A FLOC (Farm Labor Organizing Committee) evaluation of 28 Mexican family units reveals a mean to be $34,120 with a sample standard deviation of $10,050. Does this information disagree with the United Nations report? Apply the 0.01 significance level. a. State the null hypothesis and the alternate hypothesis. H 0: = H 1: b. State the decision rule for .01 significance level. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) Reject H0 if t is not between and c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic d. Does this information disagree with the United Nations report? Apply the 0.01 significance level. (Click to select) . This data (Click to select) the report. References Worksheet Difficulty: 2 Intermediate Learning Objective: 10-07 Use a t statistic to test a hypothesis. 5. Award: 10.00 points The following information is available. H0 : 220 H1 : < 220 A sample of 64 observations is selected from a normal population. The sample mean is 215, and the population standard deviation is 15. Conduct the following test of hypothesis using the .025 significance level. a. Is this a one- or two-tailed test? Two-tailed test One-tailed test b. What is the decision rule? (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.) (Click to select) H0 when z < c. What is the value of the test statistic? (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.) Value of the test statistic d. What is your decision regarding H0? Reject Do not reject e. What is the p-value? (Round your answer to 4 decimal places.) p-value References Worksheet 6. Award: 10.00 points Difficulty: 2 Intermediate Learning Objective: 10-05 Conduct a test of a hypothesis about a population mean. Given the following hypotheses: H0 : 10 H1 : > 10 A random sample of 10 observations is selected from a normal population. The sample mean was 12 and the sample standard deviation 3. Using the .05 significance level: a. State the decision rule. (Round your answer to 3 decimal places.) Reject H0 if t > b. Compute the value of the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic c. What is your decision regarding the null hypothesis? H0. There is (Click to select) population mean is greater than 10. (Click to select) evidence to conclude that the References Worksheet 7. Difficulty: 2 Intermediate Learning Objective: 10-07 Use a t statistic to test a hypothesis. Award: 10.00 points Given the following hypotheses: H0 : = 400 H1 : 400 A random sample of 12 observations is selected from a normal population. The sample mean was 407 and the sample standard deviation 6. Using the .01 significance level: a. State the decision rule. (Negative amount should be indicated by a minus sign. Round your answers to 3 decimal places.) Reject H0 when the test statistic is (Click to select) the interval ( , b. Compute the value of the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic c. What is your decision regarding the null hypothesis? Do not reject ). Reject References Worksheet Difficulty: 2 Intermediate Learning Objective: 10-07 Use a t statistic to test a hypothesis. 1 a) one tailed b) Reject , 1.645 c) 2.83 d) Reject sufficient e) 0.0023 2) a) First option b) First option c) 5.31 d) Reject e) 0.0000 3) 1) 1.315 2) Do not reject, less than or equal to 4) a) 28540 28540 b) -2.771 and 2.771 c) 2.94 d) reject ho , does not agree 5) a) One tailed test b) 1.96 c) -2.67 d) Reject e) 0.0051 6) a) 1.833 b) 2.108 c) Reject, sufficient 7) a) not in the interval , -2.575 to 2.575 b) 4.041 c) Reject 1 a) one tailed b) Reject , 1.645 c) 2.83 d) Reject sufficient e) 0.0023 2) a) First option b) First option c) 5.31 d) Reject e) 0.0000 3) 1) 1.315 2) Do not reject, less than or equal to 4) a) 28540 28540 b) -2.771 and 2.771 c) 2.94 d) reject ho , does not agree 5) a) One tailed test b) 1.96 c) -2.67 d) Reject e) 0.0051 6) a) 1.833 b) 2.108 c) Reject, sufficient 7) a) not in the interval , -2.575 to 2.575 b) 4.041 c) Reject 1. Award: 10.00 points A sample of 35 observations is selected from a normal population. The sample mean is 28, and the population standard deviation is 6. Conduct the following test of hypothesis using the 0.05 significance level. H0 : 26 H1 : > 26 a. Is this a one- or two-tailed test? "One-tailed"-the alternate hypothesis is greater than direction. "Two-tailed"-the alternate hypothesis is different from direction. b. What is the decision rule? (Round your answer to 3 decimal places.) (Click to select) H0, when z > c. What is the value of the test statistic? (Round your answer to 2 decimal places.) Value of the test statistic d. What is your decision regarding H0? Do not reject Reject There is (Click to select) evidence to conclude that the population mean is greater than 26. e. What is the p-value? (Round your answer to 4 decimal places.) p-value References Worksheet 2. Award: 10.00 points Difficulty: 2 Intermediate Learning Objective: 10-05 Conduct a test of a hypothesis about a population mean. At the time she was hired as a server at the Grumney Family Restaurant, Beth Brigden was told, \"You can average $82 a day in tips.\" Assume the population of daily tips is normally distributed with a standard deviation of $3.26. Over the first 44 days she was employed at the restaurant, the mean daily amount of her tips was $84.61. At the 0.02 significance level, can Ms. Brigden conclude that her daily tips average more than $82? a. State the null hypothesis and the alternate hypothesis. H0: 82 ; H1: < 82 H0: 82 ; H1: > 82 H0: = 82 ; H1: 82 H0: >82 ; H1: = 82 b. State the decision rule. Reject H0 if z > 2.05 Reject H1 if z > 2.05 Reject H1 if z < 2.05 Reject H0 if z < 2.05 c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic d. What is your decision regarding H0? Do not reject H0 Reject H0 e. What is the p-value? (Round your answer to 4 decimal places.) p-value References Worksheet 3. Difficulty: 2 Intermediate Learning Objective: 10-05 Conduct a test of a hypothesis about a population mean. Award: 10.00 points The Rocky Mountain district sales manager of Rath Publishing Inc., a college textbook publishing company, claims that the sales representatives make an average of 44 sales calls per week on professors. Several reps say that this estimate is too low. To investigate, a random sample of 35 sales representatives reveals that the mean number of calls made last week was 45. The standard deviation of the sample is 4.5 calls. Using the 0.050 significance level, can we conclude that the mean number of calls per salesperson per week is more than 44? H0 : 44 H1 : > 44 1. Compute the value of the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic 2. What is your decision regarding H0? (Click to select) H0. The mean number of calls is (Click to select) than 44 per week. References Worksheet 4. Difficulty: 2 Intermediate Learning Objective: 10-07 Use a t statistic to test a hypothesis. Award: 10.00 points A United Nations report shows the mean family income for Mexican migrants to the United States is $28,540 per year. A FLOC (Farm Labor Organizing Committee) evaluation of 28 Mexican family units reveals a mean to be $34,120 with a sample standard deviation of $10,050. Does this information disagree with the United Nations report? Apply the 0.01 significance level. a. State the null hypothesis and the alternate hypothesis. H 0: = H 1: b. State the decision rule for .01 significance level. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) Reject H0 if t is not between and c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic d. Does this information disagree with the United Nations report? Apply the 0.01 significance level. (Click to select) . This data (Click to select) the report. References Worksheet Difficulty: 2 Intermediate Learning Objective: 10-07 Use a t statistic to test a hypothesis. 5. Award: 10.00 points The following information is available. H0 : 220 H1 : < 220 A sample of 64 observations is selected from a normal population. The sample mean is 215, and the population standard deviation is 15. Conduct the following test of hypothesis using the .025 significance level. a. Is this a one- or two-tailed test? Two-tailed test One-tailed test b. What is the decision rule? (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.) (Click to select) H0 when z < c. What is the value of the test statistic? (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.) Value of the test statistic d. What is your decision regarding H0? Reject Do not reject e. What is the p-value? (Round your answer to 4 decimal places.) p-value References Worksheet 6. Award: 10.00 points Difficulty: 2 Intermediate Learning Objective: 10-05 Conduct a test of a hypothesis about a population mean. Given the following hypotheses: H0 : 10 H1 : > 10 A random sample of 10 observations is selected from a normal population. The sample mean was 12 and the sample standard deviation 3. Using the .05 significance level: a. State the decision rule. (Round your answer to 3 decimal places.) Reject H0 if t > b. Compute the value of the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic c. What is your decision regarding the null hypothesis? H0. There is (Click to select) population mean is greater than 10. (Click to select) evidence to conclude that the References Worksheet 7. Difficulty: 2 Intermediate Learning Objective: 10-07 Use a t statistic to test a hypothesis. Award: 10.00 points Given the following hypotheses: H0 : = 400 H1 : 400 A random sample of 12 observations is selected from a normal population. The sample mean was 407 and the sample standard deviation 6. Using the .01 significance level: a. State the decision rule. (Negative amount should be indicated by a minus sign. Round your answers to 3 decimal places.) Reject H0 when the test statistic is (Click to select) the interval ( , b. Compute the value of the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic c. What is your decision regarding the null hypothesis? Do not reject ). Reject References Worksheet Difficulty: 2 Intermediate Learning Objective: 10-07 Use a t statistic to test a hypothesis