Question

In testing H0: µ = 3 versus Ha: µ ¹ 3 when =3.5, s = 2.5,...

In testing H0: µ = 3 versus Ha: µ ¹ 3 when =3.5, s = 2.5, and n = 100, what is the decision at the 1% significance level?

A. Reject the null.

B. Fail to reject the null.

C. More information is needed.

D. None of the above.

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

n = 100

The test hypothesis is

This is a two-sided test because the alternative hypothesis is formulated to detect differences from the hypothesized mean value of 30 on either side.

Now, the value of test static can be found out by following formula:

For .

Since , we fail to reject the null hypothesis

Reject the null hypothesis

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