You wish to test the following claim (HaHa) at a significance level of α=0.001α=0.001. Ho:μ=51.3Ho:μ=51.3 Ha:μ≠51.3Ha:μ≠51.3 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=12n=12 with mean M=49.2M=49.2 and a standard deviation of SD=5.5SD=5.5. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = Correct What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = Incorrect0.2128 or 0.2127 The p-value is... less than (or equal to) αα greater than αα Correct This test statistic leads to a decision to... reject the null accept the null fail to reject the null Correct As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the population mean is not equal to 51.3. There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 51.3. The sample data support the claim that the population mean is not equal to 51.3. There is not sufficient sample evidence to support the claim that the population mean is not equal to 51.3.

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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You wish to test the following claim (HaHa) at a significance level of α=0.001α=0.001.

Ho:μ=51.3Ho:μ=51.3
Ha:μ≠51.3Ha:μ≠51.3

You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n=12n=12 with mean M=49.2M=49.2 and a standard deviation of SD=5.5SD=5.5.

What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic = Correct

What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value = Incorrect0.2128 or 0.2127

The p-value is...

less than (or equal to) αα
greater than αα

Correct

This test statistic leads to a decision to...

reject the null
accept the null
fail to reject the null

Correct

As such, the final conclusion is that...

There is sufficient evidence to warrant rejection of the claim that the population mean is not equal to 51.3.
There is not sufficient evidence to warrant rejection of the claim that the population mean is not equal to 51.3.
The sample data support the claim that the population mean is not equal to 51.3.
There is not sufficient sample evidence to support the claim that the population mean is not equal to 51.3.

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