a. Write the null and alternative hypotheses to test whether the population variance is less than 0.8. Ho:a is H:a is b. Using a = 0.025, find the critical value ofx. Specify the rejection and nonrejection regions on the chi-square distribution curve. Enter the exact answer from the chi-square distribution table. The rejection region is of the critical value ofx. The nonrejection region is : of the critical value of y. C. Find the value of the test statisticy. Round your answer to three decimal places. The value of the test statisticy is i d. Using the 2.5% significance level, will you reject the null hypothesis stated in part a.?

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A sample of 25 observations selected from a normally distributed population produced a sample variance of 0.6,
a. Write the null and alternative hypotheses to test whether the population variance is less than 0,8.
Ho:o is
i
H:0 is
b. Using a = 0.025, find the critical value of x. Specify the rejection and nonrejection regions on the chi-square distribution curve.
Enter the exact answer from the chi-square distribution table.
The rejection region is
of the critical value of x.
The nonrejection region is
* of the critical value of .
c. Find the value of the test statistic.
Round your answer to three decimal places.
The value of the test statisticz is i
d. Using the 2.5% significance level, will you reject the null hypothesis stated in part a.?
Transcribed Image Text:A sample of 25 observations selected from a normally distributed population produced a sample variance of 0.6, a. Write the null and alternative hypotheses to test whether the population variance is less than 0,8. Ho:o is i H:0 is b. Using a = 0.025, find the critical value of x. Specify the rejection and nonrejection regions on the chi-square distribution curve. Enter the exact answer from the chi-square distribution table. The rejection region is of the critical value of x. The nonrejection region is * of the critical value of . c. Find the value of the test statistic. Round your answer to three decimal places. The value of the test statisticz is i d. Using the 2.5% significance level, will you reject the null hypothesis stated in part a.?
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