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If your test statistic is 2.12 and you are working with an alpha level of .10,...

If your test statistic is 2.12 and you are working with an alpha level of .10, what will your decision be? (Hint: think about the critical value for the rejection region at this level.)

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Answer #1

Answer:

Null and alternative hypothesis is,

H0: = 0

H1: 0

The Test statistic (Z) is 2.12.

The critical value z at 0.10 alpha level is 1.645

Rejection Region: Reject null hypothesis when the value of test statistic is greater than 1.645

Decision: The value of test statistic is greater than critical value. Hence we reject null hypothesis at 0.10 alpha level and conclude that the population mean is not equal the specified value of mean.

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