mg We want to conduct a hypothesis test of the claim that for middle-aged adults the population mean of their cholesterol levels is more than 202 . We choose dL a random sample of such levels. The sample has a mean of 197 mg and a standard deviation of 19 mg dL 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 16, and it is from a normally distributed population with a known standard deviation of 19.3. -미 O z = O t = O It is unclear which test statistic to use. (b) The sample has size 17, and it is from a normally distributed population with an unknown standard deviation. O z = O t = O It is unclear which test statistic to use.

mg We want to conduct a hypothesis test of the claim that for middle-aged adults the population mean of their cholesterol levels is more than 202 . We choose dL a random sample of such levels. The sample has a mean of 197 mg and a standard deviation of 19 mg dL 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 16, and it is from a normally distributed population with a known standard deviation of 19.3. -미 O z = O t = O It is unclear which test statistic to use. (b) The sample has size 17, and it is from a normally distributed population with an unknown standard deviation. O z = O t = O It is unclear which test statistic to use.

Name: mgWe want to conduct a hypothesis test of the claim that for middle-a
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Description: mgWe want to conduct a hypothesis test of the claim that for middle-aged adults the population mean of their cholesterol levels is more than 202We choosemgand a standard deviation of 19dLmga random sample of such levels. The sample has a mean of 197

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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In the US, 46.2% of all people have type O blood, 39.1% have type A blood, 10.4% have type B blood and 4.3% have type AB blood. A researcher wants to see if the distribution of blood type is different for millionaires. The table below shows the results of a random sample of 3116 millionaires. What can be concluded at the a = 0.01 significance level? a. Complete the table by filling in the expected frequencies. Round to the nearest whole number: Frequencies of Blood Type Outcome Frequency Expected Frequency 1434 A 1224 В 310 AB 148 b. What is the correct statistical test to use? Select an answer V c. What are the null and alternative hypotheses? Но: O Blood type and income are independent. O The distribution of blood type for millionaires is not the same as it is for Americans in general. O The distribution of blood type for millionaires is the same as it is for Americans in general. O Blood type and income are dependent.
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