Question

choose the right answer:

PART A:   

You are performing a right-tailed z-test

If α=.10α=.10, and your test statistic is z=2.67z=2.67, do you:

• Fail to Reject Null Hypothesis
• Reject Null Hypothesis

PART B:   

If your claim is in the alternative hypothesis and you fail to reject the null hypothesis, then your conclusion would be:

• The sample data support the original claim
• There is not sufficient sample evidence to support the original claim
• There is not sufficient evidence to warrant rejection of the original claim
• There is sufficient evidence to warrant rejection of the original claim

PART C:   

If your claim is in the null hypothesis and you reject the null hypothesis, then your conclusion would be:

• There is not sufficient evidence to warrant rejection of the original claim
• There is sufficient evidence to warrant rejection of the original claim
• The sample data support the original claim
• There is not sufficient sample evidence to support the original claim

Answer 1

Solution:-

Part A) Reject Null Hypothesis

z = 2.67

Right tailed test

P(z > 2.67) = 0.0038

Thus, the P-value = 0.0038

Interpret results. Since the P-value (0.0038) is less than the significance level (0.10), we have to reject the null hypothesis.

Part B) There is not sufficient sample evidence to support the original claim.

Part C) There is sufficient evidence to warrant rejection of the original claim.