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Author Question: The scores on a standardized test are reported by the testing agency to have a mean of 75. Based on ... (Read 105 times)

dakota nelson

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Question 1

In a test of H0: μ = 250 against Ha: μ ≠ 250, a sample of n = 100 observations possessed mean = 247.3 and standard deviation s = 11.4. Find and interpret the p-value for the test.

Question 2

The scores on a standardized test are reported by the testing agency to have a mean of 75. Based on his personal observations, a school guidance counselor believes the mean score is much higher. He collects the following scores from a sample of 50 randomly chosen students who took the test.

39485563666868697071
71717374767676777879
79797980808283838385
85868688888888898989
90919292939596979799

Find and interpret the p-value for the test of H0: μ = 75 against Ha: μ > 75.


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Marked as best answer by dakota nelson on Feb 14, 2020

T4T

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dakota nelson

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Reply 2 on: Feb 14, 2020
Excellent


lkanara2

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Reply 3 on: Yesterday
Gracias!

 

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