QSO 510: Estimation & Hypothesis Testing Review Problem 1 A real estate broker for Gieselman and Associates randomly selected four properties from a subdivision, and an appraiser gave an opinion on...

QSO 510: Estimation & Hypothesis Testing Review Problem 1 A real estate broker for Gieselman and Associates randomly selected four properties from a subdivision, and an appraiser gave an opinion on the value of each property as $17, $21, $21, and $21 thousand. Find the 95% confidence interval estimate for the mean value of all properties located in the subdivision. Assume normality. Problem 2 A consumer advocate randomly selected nine prescription drug items at an American Drug pharmacy and found the values of the suggested retail prices minus the actual retail prices as $0, $8, $0, $0, $3, $0, $3, $5, and -$l. Find the 95% confidence interval estimate for the mean difference in retail prices for prescription drug items sold at the pharmacy. Assume normality Problem 3 The accompanying data are the times (in seconds) that it took a sample of employees to assemble a toy truck at a Cole Industries assembly plant. Assembly times are normally distributed. At the 10% level, can we conclude that the mean assembly time for this toy truck is not equal to 3 minutes? Use Ha: ( ( 180 seconds as the alternative hypothesis. Data190180181208198199176174183188165198 2QSO 510: Module 3 QSO 510: Module 33 QSO 510: Module 31 y time for this toy truck is not equal to 3 minutes? Use Ha: ( ( 180 seconds as the alternative hypothesis. Data190180181208198199176174183188165198 2QSO 510: Module 3 QSO 510: Module 33 QSO 510: Module 31 confidence interval estimate for the mean value of all properties located in the subdivision. Assume normality. Problem 2 A consumer advocate randomly selected nine prescription drug items at an American Drug pharmacy and found the values of the suggested retail prices minus the actual retail prices as $0, $8, $0, $0, $3, $0, $3, $5, and -$l. Find the 95% confidence interval estimate for the mean...