The follows the home upload to the singlePDF Instructions for answering to write integrity Statement. Pow the Step Write AUM , , , Step Write the following that he will given world any time and take it can Step your Mother Step 4: Solve Question SHOW ALL YOUR WORK AND GOOD calle (1) (20 pts) A tax assessor wants to estimate the man property tax bill for all homeowners living in Madison, Wisconsin A Scompleted three years ago indicated that the mean and standard deviation were $1800 and $1500 Assuming that the standard deviation is still about Sigo, how large a sample of tax records should the tax assess take in der to estimate the mean correct to within $195 with probability 0.89 (2) (25 pts) North and South Co. makes celine customer surveys for its clients According to their claim a survey takes and 10 minutes. A suspicious ellent of them, who thinks it actually takes more than 30 minutes, wants to challenge this claim and picks up random 35 calls from North and South Cas It shows a sample average of the population standard deviation as 4 minutes a) pts) Formulate the most appropriate mailand alternative hypothesis for (b) pts.) Compute the test statistics (e) (Sp) Compute the (d) pts) Determine the conclusion for le str.) Construct the confidence interval fine the population mean with a confidence level of 95. Does it support your choice at () (25 pts.) This past year, an elementary school began using a new method to teach arithmetic to first graders. A standardised test, administered at the end of the year, was used to measure the diectives of the method. The distribution of past scores on the standardised to produced a man of 65 and a standard deviation of 10 a) s pts.) If the new method is no different froes the old method, what is the approximate probability that the score of a random sample of 40 students will be greater than (b)(10 pes.) What assumptions must be satisfied to make your answer valid? (4) (20 pts) A company produces breakfast cereal. The true mean weight of the contents of its cereal packages is 35 ans, and the standard deviation is 1.6 ounce. The population distribution of this is normal Suppose that you purchase 10 packages, which can be regarded as a random sample of all those produced (a) (10 p.) What is the standarder of the came weight? (b)(10 pts) What is the probability that coverage the contents of these four packages will weigh between 34 and 6) (10) Every day, fast-food chaines that the age weight of its two- pounders is at least 32 cunces. The heative hypothesis is that the average weight is less than outies, indicating that new processing procedures are needed. The weight of two-pounds can be umed to be normally distributed with a standard deviation of The decision rule adopted is to reject the null bypothesis if the sample weight is less than 30.8 ounces. If the random samples of sponde are selected, what is the probability of a Type I, using this The follows the home upload to the singlePDF Instructions for answering to write integrity Statement. Pow the Step Write AUM , , , Step Write the following that he will given world any time and take it can Step your Mother Step 4: Solve Question SHOW ALL YOUR WORK AND GOOD calle (1) (20 pts) A tax assessor wants to estimate the man property tax bill for all homeowners living in Madison, Wisconsin A Scompleted three years ago indicated that the mean and standard deviation were $1800 and $1500 Assuming that the standard deviation is still about Sigo, how large a sample of tax records should the tax assess take in der to estimate the mean correct to within $195 with probability 0.89 (2) (25 pts) North and South Co. makes celine customer surveys for its clients According to their claim a survey takes and 10 minutes. A suspicious ellent of them, who thinks it actually takes more than 30 minutes, wants to challenge this claim and picks up random 35 calls from North and South Cas It shows a sample average of the population standard deviation as 4 minutes a) pts) Formulate the most appropriate mailand alternative hypothesis for (b) pts.) Compute the test statistics (e) (Sp) Compute the (d) pts) Determine the conclusion for le str.) Construct the confidence interval fine the population mean with a confidence level of 95. Does it support your choice at () (25 pts.) This past year, an elementary school began using a new method to teach arithmetic to first graders. A standardised test, administered at the end of the year, was used to measure the diectives of the method. The distribution of past scores on the standardised to produced a man of 65 and a standard deviation of 10 a) s pts.) If the new method is no different froes the old method, what is the approximate probability that the score of a random sample of 40 students will be greater than (b)(10 pes.) What assumptions must be satisfied to make your answer valid? (4) (20 pts) A company produces breakfast cereal. The true mean weight of the contents of its cereal packages is 35 ans, and the standard deviation is 1.6 ounce. The population distribution of this is normal Suppose that you purchase 10 packages, which can be regarded as a random sample of all those produced (a) (10 p.) What is the standarder of the came weight? (b)(10 pts) What is the probability that coverage the contents of these four packages will weigh between 34 and 6) (10) Every day, fast-food chaines that the age weight of its two- pounders is at least 32 cunces. The heative hypothesis is that the average weight is less than outies, indicating that new processing procedures are needed. The weight of two-pounds can be umed to be normally distributed with a standard deviation of The decision rule adopted is to reject the null bypothesis if the sample weight is less than 30.8 ounces. If the random samples of sponde are selected, what is the probability of a Type I, using this