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8th Edition

Charles Henry Brase + 1 other

Publisher: Cengage Learning

ISBN: 9781337558075

Chapter 9.2, Problem 10P

Textbook Problem

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**Basic Computation: Testing** µ,

(a) **Cheek Requirements** Is it appropriate to use a Student's *t* distribution? Explain. How many degrees of freedom do we use?

(b) What are the hypotheses?

(c) Compute the *t* value of the sample test statistic.

(d) Estimate the *P*-value for the test.

(e) Do we reject or fail to reject

(f) **Interpret** the results.

**(a)**

To determine

Whether we should use student’s *t*-distribution or not and compute the degrees of freedom.

Since, the value of the parameter *t*-distribution.

**(b)**

To determine

The null hypothesis and alternate hypothesis.

**(c)**

To determine

**To find:** The test statistic *t*.

**(d)**

To determine

**To find:** The *P*-value of the test statistic.

**(e)**

To determine

Whether we reject or fail to reject the null hypothesis for a 1% level of significance.

**(f)**

To determine

Interpretation for the result.

Understanding Basic Statistics

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