To test the claim that mean weight is greater than 166.3 lbs. A sample of 40 peo

Question

To test the claim that mean weight is greater than 166.3 lbs. A sample of 40 people showed that the sample mean was 172.55. If the population standard deviation is known to be 26.33 lbs. Find the critical value when alpha=5%

Question 19 options:

1.96

3.12

1.645

2.58

When testing hypothesis about mean, what is your decision, If p- value is found to be 0.035 and the decision is to be made at 95% confidence level.

Question 20 options:

Test is inconclusive (not enough information)

We donot reject the null hypothesis H0

We reject the null hypothesis H0

Question 21 (1 point)

Suppose the claim is that the proportion of smoker is greater than 15% in Mankato population

Question 21 options:

This is two sided test

This is right sided test

This is left sided test

1.96

3.12

1.645

2.58

When testing hypothesis about mean, what is your decision, If p- value is found to be 0.035 and the decision is to be made at 95% confidence level.

Question 20 options:

Test is inconclusive (not enough information)

We donot reject the null hypothesis H0

We reject the null hypothesis H0

Question 21 (1 point)

Suppose the claim is that the proportion of smoker is greater than 15% in Mankato population

Question 21 options:

This is two sided test

This is right sided test

This is left sided test

Explanation / Answer

19) Critical value at 5% would be 1.645

20) We reject the null hypothesis H0 because p value is less than 0.05

21) This is right sided test because we want to test for greater

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