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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 195.7 mg dL a random sample of such levels. The sample has a mean of 192.7 and a standard deviation of 19 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 14, and it is from a normally distributed population with an unknown standard deviation. Oz= 0 -0 O It is unclear which test statistic to use. mg dL Ot= (b) The sample has size 20, and it is from a normally distributed population with a known standard deviation of 19.1. Oz= Ot: O It is unclear which test statistic to use. We choose X S

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 195.7 mg dL a random sample of such levels. The sample has a mean of 192.7 and a standard deviation of 19 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 14, and it is from a normally distributed population with an unknown standard deviation. Oz= 0 -0 O It is unclear which test statistic to use. mg dL Ot= (b) The sample has size 20, and it is from a normally distributed population with a known standard deviation of 19.1. Oz= Ot: O It is unclear which test statistic to use. We choose X S

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 195.7 mg a random sample of such levels. The sample has a mean of 192.7 and a standard deviation of 19 dL mg dL (a) The sample has size 14, and it is from a normally distributed population with an unknown standard deviation. 0:= 0 O 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. O =0 O It is unclear which test statistic to use. (b) The sample has size 20, and it is from a normally distributed population with a known standard deviation of 19.1. z = 0 O o t=0 O It is unclear which test statistic to use. mg dL X We choose S
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 195.7 mg a random sample of such levels. The sample has a mean of 192.7 and a standard deviation of 19 dL mg dL (a) The sample has size 14, and it is from a normally distributed population with an unknown standard deviation. 0:= 0 O 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. O =0 O It is unclear which test statistic to use. (b) The sample has size 20, and it is from a normally distributed population with a known standard deviation of 19.1. z = 0 O o t=0 O It is unclear which test statistic to use. mg dL X We choose S
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