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StatisticsQ&A Library11. For each ofthe following tests of hypotheses, determine whether the null hypothesesshould be rejected. Show all steps and use the critical-value methoda. Ho: 4,000Ha:u4,000n 70, 4,150; a=2,600; a= .01b Ho: μ 60Ha: μ>60n 24;65;s=7; a = .05c. Ho: 500Ha: 30a.05; n 250; p 34Question

Asked Dec 2, 2019

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Please answer part d

Step 1

d.

**Null hypothesis:**

* *

*H*_{0}: *p*=0.30.

**Alternative hypothesis:**

* *

*H*_{a}: *p**>0.30*.

From the given information, the sample size is, *n* =250 and the sample proportion is *p̵*=0.34.

**Test Statistic:**

The test statistic is ** 1.38** and it is calculated below:

Step 2

**Critical value:**

From the standard normal table. the critical value corresponding with 0.05 and right tail test is **1.645**.

** **

**Rejection Rule:**

If *z*cal is greater than the critical value, then reject the null hypothesis.

If *z*cal is lesser than or equal to the critical value, then do not reject the null hypothesis.

**Conclusion:**

The t...

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