Print View Page 1 of 6 [The following information applies to the questions displayed below.] The top food snacks consumed by adults aged 18-54 are gum, chocolate candy, fresh fruit, potato chips, breath mints/candy, ice cream, nuts, cookies, bars, yogurt, and crackers. Out of a random sample of 25 men, 15 ranked fresh fruit in their top five snack choices. Out of a random sample of 32 women, 22 ranked fresh fruit in their top five snack choices. Is there a difference in the proportion of men and women who rank fresh fruit in their top five list of snacks? rev: 12_18_2012, 04_25_2014_QC_48233 1. Award: 10.00 points (a-2) State the decision rule for = 0.10. (Round your answers to 3 decimal places. Negative value should be indicated by minus sign.) Fail to reject the null hypothesis if < zcalc < . rev: 04_25_2014_QC_48233 References Worksheet Difficulty: 2-Medium 2. Learning Objective: 10-05 Perform a test to compare two proportions using z. Learning Objective: 10-07 Use Excel to determine p-values for two-sample tests using z or t. Learning Objective: 10-06 Check whether normality may be assumed for two proportions. Award: 10.00 points (b) Calculate the sample proportions. (Round your answers to 4 decimal places.) Sample proportion Men http://ezto.mheducation.com/hm.tpx 6/11/2015 Assignment Print View Page 2 of 6 Women References Worksheet Learning Objective: 10-05 Perform a test to compare two proportions using z. Difficulty: 2-Medium Learning Objective: 10-07 Use Excel to determine p-values for two-sample tests using z or t. Learning Objective: 10-06 Check whether normality may be assumed for two proportions. [The following information applies to the questions displayed below.] In an early home game, an NBA team made 71.11 percent of their 90 free throw attempts. In one of their last home games, the team had a free throw percentage equal to 66.27 percent out of 83 attempts. Do basketball teams improve their free throw percentage as their season progresses? Test the hypothesis of equal free throw percentages, treating the early season and late season games as random samples. Use a level of significance of .10. 3. Award: 10.00 points (a-2) Identify the decision rule. (Round your answers to 2 decimal places. Negative value should be indicated by minus sign.) Reject the null hypothesis if zcalc < References Worksheet Learning Objective: 10-05 Perform a test to compare two proportions using z. Difficulty: 2-Medium Learning Objective: 10-07 Use Excel to determine p-values for two-sample tests using z or t. http://ezto.mheducation.com/hm.tpx 6/11/2015 Assignment Print View 4. Page 3 of 6 Award: 10.00 points (a-3) Calculate the Z test statistic value. (Round your answer to 4 decimal places. Negative value should be indicated by a minus sign.) Z test statistic value References Worksheet Learning Objective: 10-05 Perform a test to compare two proportions using z. Difficulty: 2-Medium Learning Objective: 10-07 Use Excel to determine p-values for two-sample tests using z or t. [The following information applies to the questions displayed below.] A 2005 study found that 296 women held board seats out of a total of 1,104 seats in the Fortune 100 companies. A 2003 study found that 791 women held board seats out of a total of 5,714 seats in the Fortune 500 companies. rev: 12_13_2013_QC_42645 5. Award: 10.00 points (a-2) Specify the decision rule at = .05. Reject the null hypothesis if zcalc > . References Worksheet Learning Objective: 10-05 Perform a test to compare two proportions using z. http://ezto.mheducation.com/hm.tpx 6/11/2015 Assignment Print View Difficulty: 2-Medium 6. Page 4 of 6 Learning Objective: 10-07 Use Excel to determine p-values for two-sample tests using z or t. Award: 10.00 points (b) Calculate the sample proportions. (Round your answers to 4 decimal places.) Sample proportion Women board members in Fortune 100 companies Women board members in Fortune 500 companies References Worksheet Learning Objective: 10-05 Perform a test to compare two proportions using z. Difficulty: 2-Medium Learning Objective: 10-07 Use Excel to determine p-values for two-sample tests using z or t. [The following information applies to the questions displayed below.] To test his hypothesis that students who finish an exam first get better grades, a professor kept track of the order in which papers were handed in. Of the first 27 papers, 11 received a B or better compared with 8 of the last 28 papers handed in. 7. Award: 10.00 points (a-2) Specify the decision rule. (at = .10) (Round your answer to 2 decimal places). Reject the null hypothesis if zcalc > . References http://ezto.mheducation.com/hm.tpx 6/11/2015 Assignment Print View Page 5 of 6 Worksheet Difficulty: 2-Medium 8. Learning Objective: 10-05 Perform a test to compare two proportions using z. Learning Objective: 10-07 Use Excel to determine p-values for two-sample tests using z or t. Learning Objective: 10-06 Check whether normality may be assumed for two proportions. Award: 10.00 points (a-3) Find the test statistic zcalc and p-value. (Do not round the intermediate calculations but round the proportions to 4 decimal places. Round your final answers to 4 decimal places.) zcalc p-value References Worksheet Learning Objective: 10-05 Perform a test to compare two proportions using z. Difficulty: 2-Medium Learning Objective: 10-07 Use Excel to determine p-values for two-sample tests using z or t. Learning Objective: 10-06 Check whether normality may be assumed for two proportions. [The following information applies to the questions displayed below.] A ski company in Vail owns two ski shops, one on the east side and one on the west side. Sales data showed that at the eastern location there were 56 pairs of large gloves sold out of 304 total pairs sold. At the western location there were 145 pairs of large gloves sold out of 562 total pairs sold. 9. Award: 10.00 points http://ezto.mheducation.com/hm.tpx 6/11/2015 Assignment Print View Page 6 of 6 (b-4) Make the decision. Do not reject the null hypothesis Reject the null hypothesis References Worksheet 10. Difficulty: 2-Medium Learning Objective: 10-05 Perform a test to compare two proportions using z. Award: 10.00 points (b-5) What is your conclusion at = 0.10? We (Click to select) side of Vail. conclude that there is a greater proportion of large gloves sold on the west References Worksheet Difficulty: 2-Medium http://ezto.mheducation.com/hm.tpx Learning Objective: 10-05 Perform a test to compare two proportions using z. 6/11/2015 \f\f