To test the claim that the average height of students is greater than 5.2 ft. If

Question

To test the claim that the average height of students is greater than 5.2 ft. If we took a sample of size 35 students  and calculated the p-value to be 0.035. What is your conclusion?

Question 14 options:

Reject null hypothesis with 97% confidence.

Reject null hypothesis with 95% confidence.

Reject null hypothesis with 99% confidence.

Reject null hypothesis with 98% confidence.

Question 15 (1 point)

If it is one sided test and alpha=0.05. Find t(alpha) from t-table if sample size is 10.

Question 15 options:

1.812

1.228

2.262

1.833

To test the claim that the mean population height is greater than 5.6 ft. Assume that the population standard deviation sigma is known and  alpha= 5%. Find the critical value . (Hint: draw the curve first, total area under the curve is given = 5%).

Question 16 options:

1.96

0.05

1.645

2.575

2.85

Reject null hypothesis with 97% confidence.

Reject null hypothesis with 95% confidence.

Reject null hypothesis with 99% confidence.

Reject null hypothesis with 98% confidence.

Question 15 (1 point)

If it is one sided test and alpha=0.05. Find t(alpha) from t-table if sample size is 10.

Question 15 options:

1.812

1.228

2.262

1.833

To test the claim that the mean population height is greater than 5.6 ft. Assume that the population standard deviation sigma is known and  alpha= 5%. Find the critical value . (Hint: draw the curve first, total area under the curve is given = 5%).

Question 16 options:

1.96

0.05

1.645

2.575

2.85

Explanation / Answer

1 ) p-value = 0.035 . Reject null hypothesis with 95% confidence

2) n=10 Degrees of freedom = n-1 =9. t value at 0.05 one sided = 1.833

3) H0 : mean > 5.6ft. This dictates a right tailed test. Hence at alpha = 0.05 , z = 1.645

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