MATH302 Week 5 TEST COMPLETE QUESTIONS AND ANSWERS 2023 GRADED A+.

MATH302 Week 5 TEST COMPLETE QUESTIONS AND ANSWERS 2023 GRADED A+. Part 1 of 4 - Z-interval for Unknown Questions 7.0/ 7.0 Points Question 1 of 20 1.0/ 1.0 Points There is no prior information about the proportion of Americans who support gun control in 2019. If we want to estimate 93% confidence interval for the true proportion of Americans who support gun control in 2019 with a 0.18 margin of error, how many randomly selected Americans must be surveyed? Answer: (Round up your answer to nearest whole number, do not include any decimals) 26 Answer Key: 26 Feedback: Z-Critical Value = NORM.S.INV(.965) = 1. n = Question 2 of 20 1.0/ 1.0 Points There is no prior information about the proportion of Americans who support free trade in 2019. If we want to estimate a 98% confidence interval for the true proportion of Americans who support free trade in 2019 with a 0.21 margin of error, how many randomly selected Americans must be surveyed? Answer: (Round up your answer to nearest whole number, do not include any decimals) 31 Answer Key: 31 Feedback: Z-Critical Value = NORM.S.INV(.99) = 2. n = Question 3 of 20 1.0/ 1.0 Points The population standard deviation for the height of college football players is 2.7 inches. If we want to estimate a 95% confidence interval for the population mean height of these players with a 0.65 margin of error, how many randomly selected players must be surveyed? (Round up your answer to nearest whole number, do not include any decimals) Answer: 67