Side-by-SideThe National Center for Health Statistics reports that thesystolic blood pressure for males 35 to 44 years of age hasmean 128mm Hg and standard deviation 15 mm Hg. Themedical director of a large company looks at the medicalrecords of 72 executives in this age group and finds that themean systolic blood pressure in this sampleis x = 126.07 mm Hg.At a 5% significance level, the data fail to show significantevidence that the mean blood pressure of a population ofexecutives differs from the national mean μ = 128 mm Hg.The medical director now wonders if the test used woulddetect an important difference if one were present. Use the applet to calculate the power of the test against thealternative μ = 122 mm Hg. Provide your answer to threedecimal places.Power =Can the test be relied on to detect a mean that differsfrom 128 mm Hg. by 6 mm Hg?Yes, the test can be relied on to detect thisdifference, because the power is low.Yes, the test can be relied on to detect thisdifference, because the power is high.No, the test cannot be relied on to detect thisdifference, because the power is high.No, the test cannot be relied on to detect thisdifference, because the significance is low.

Answered: The National Center for Health…

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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The mean age when smokers first start is 13 years old with a population standard deviation of 1.8 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS—electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 31 smokers found that their mean starting age was 12.4 years old. Do the data support the claim at the 10% significance level? What are the correct hypotheses? H0: yearsH1: years Based on the hypotheses, find the following: Test Statistic z = (Give answer to at least 4 decimal places)p-value = (Give answer to at least 4 decimal places) Based on the above we choose to The correct summary would be: that the claim that the mean age smokers first start is different than 13.
The mean age when smokers first start is 13 years old with a population standard deviation of 1.8 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS—electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 30 smokers found that their mean starting age was 12.2 years old. Do the data support the claim at the 10% significance level? What are the correct hypotheses? H0: yearsH1: years Based on the hypotheses, find the following: Test Statistic z = (Give answer to at least 4 decimal places)Critical Values =± (Give answer to at least 4 decimal places) Based on the above we choose to The correct summary would be: that the claim that the mean age smokers first start is different than 13.
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The mean age when smokers first start is 13 years old with a population standard deviation of 1.8 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS—electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 33 smokers found that their mean starting age was 12.3 years old. Do the data support the claim at the 5% significance level? What are the correct hypotheses? Based on the hypotheses, find the following: Test Statistic z = (Give answer to at least 2 decimal places) From the table(https://ma336.qccmathcs.com/ ), Find p-value = (Give answer to at least 4 decimal places)

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