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We want to conduct a hypothesis test of the claim that for middle-aged adults the population mean of their cholesterol levels is less than 191.7 mg/dL. We choose a random sample of such levels. The sample has a mean of 190.7 mg/dL and a standard deviation of 18 mg/dL. For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis test on the population mean. Then calculate that statistic. Round your answers to two decimal places. (a) The sample has size 110, and it is from a non-normally distributed population with a known standard deviation of 19.1. - ☐ z = [___] - ☐ t = [___] - ☐ It is unclear which test statistic to use. (b) The sample has size 14, and it is from a population with a distribution about which we know very little. - ☐ z = [___] - ☐ t = [___] - ☐ It is unclear which test statistic to use. Options at the bottom: - Explanation - Check Buttons at the corner: - X (Close) - ↻ (Refresh)

We want to conduct a hypothesis test of the claim that for middle-aged adults the population mean of their cholesterol levels is less than 191.7 mg/dL. We choose a random sample of such levels. The sample has a mean of 190.7 mg/dL and a standard deviation of 18 mg/dL. For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis test on the population mean. Then calculate that statistic. Round your answers to two decimal places. (a) The sample has size 110, and it is from a non-normally distributed population with a known standard deviation of 19.1. - ☐ z = [___] - ☐ t = [___] - ☐ It is unclear which test statistic to use. (b) The sample has size 14, and it is from a population with a distribution about which we know very little. - ☐ z = [___] - ☐ t = [___] - ☐ It is unclear which test statistic to use. Options at the bottom: - Explanation - Check Buttons at the corner: - X (Close) - ↻ (Refresh)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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We want to conduct a hypothesis test of the claim that for middle-aged adults the population mean of their cholesterol levels is less than 191.7 mg/dL. We choose a random sample of such levels. The sample has a mean of 190.7 mg/dL and a standard deviation of 18 mg/dL. For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis test on the population mean. Then calculate that statistic. Round your answers to two decimal places. (a) The sample has size 110, and it is from a non-normally distributed population with a known standard deviation of 19.1. - ☐ z = [___] - ☐ t = [___] - ☐ It is unclear which test statistic to use. (b) The sample has size 14, and it is from a population with a distribution about which we know very little. - ☐ z = [___] - ☐ t = [___] - ☐ It is unclear which test statistic to use. Options at the bottom: - Explanation - Check Buttons at the corner: - X (Close) - ↻ (Refresh)
Transcribed Image Text:We want to conduct a hypothesis test of the claim that for middle-aged adults the population mean of their cholesterol levels is less than 191.7 mg/dL. We choose a random sample of such levels. The sample has a mean of 190.7 mg/dL and a standard deviation of 18 mg/dL. For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis test on the population mean. Then calculate that statistic. Round your answers to two decimal places. (a) The sample has size 110, and it is from a non-normally distributed population with a known standard deviation of 19.1. - ☐ z = [___] - ☐ t = [___] - ☐ It is unclear which test statistic to use. (b) The sample has size 14, and it is from a population with a distribution about which we know very little. - ☐ z = [___] - ☐ t = [___] - ☐ It is unclear which test statistic to use. Options at the bottom: - Explanation - Check Buttons at the corner: - X (Close) - ↻ (Refresh)
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