As such, the final conclusion is that... O There is enough evidence to show that the population mean is not different from 68.5. O There is not enough evidence to show that the population mean is not different from 68.5. O The is enough evidence to show that the population mean is different from 68.5. There is not enough evidence to show that the population mean is different from 68.5.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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You wish to test the following claim (H.) at a significance level of a = 0.02.
Ho:µ = 68.5
Ha: µ 68.5
You believe the population is normally distributed and you know the standard deviation is o = 12.2. You
obtain a sample mean of 72.1 for a sample of size n
= 51.
What is the critical value for this test? (Report answer accurate to three decimal places.)
critical value
2.33
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statisticC =| 2.107
The test statistic is...
O in the critical region
O not in the critical region
This test statistic leads to a decision to...
Oreject the null hypothesis
accept the null hypothesis
O fail to reject the null hypothesis
Transcribed Image Text:You wish to test the following claim (H.) at a significance level of a = 0.02. Ho:µ = 68.5 Ha: µ 68.5 You believe the population is normally distributed and you know the standard deviation is o = 12.2. You obtain a sample mean of 72.1 for a sample of size n = 51. What is the critical value for this test? (Report answer accurate to three decimal places.) critical value 2.33 What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statisticC =| 2.107 The test statistic is... O in the critical region O not in the critical region This test statistic leads to a decision to... Oreject the null hypothesis accept the null hypothesis O fail to reject the null hypothesis
The test statistic is...
O in the critical region
not in the critical region
This test statistic leads to a decision to...
O reject the null hypothesis
O accept the null hypothesis
O fail to reject the null hypothesis
As such, the final conclusion is that...
O There is enough evidence to show that the population mean is not different from 68.5.
O There is not enough evidence to show that the population mean is not different from 68.5.
The is enough evidence to show that the population mean is different from 68.5.
There is not enough evidence to show that the population mean is different from 68.5.
Transcribed Image Text:The test statistic is... O in the critical region not in the critical region This test statistic leads to a decision to... O reject the null hypothesis O accept the null hypothesis O fail to reject the null hypothesis As such, the final conclusion is that... O There is enough evidence to show that the population mean is not different from 68.5. O There is not enough evidence to show that the population mean is not different from 68.5. The is enough evidence to show that the population mean is different from 68.5. There is not enough evidence to show that the population mean is different from 68.5.
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