Author Question: Exhibit 10-3A statistics teacher wants to see if there is any difference in the abilities of ... (Read 105 times)

bubba123 · **on:** Mar 25, 2023

Exhibit 10-3
A statistics teacher wants to see if there is any difference in the abilities of students enrolled in statistics today and those enrolled five years ago. A sample of final examination scores from students enrolled today and from students enrolled five years ago was taken. You are given the following information.

	Today	Five Years Ago
	82.0	88
σ²	112.5	54
n	45.0	36

Refer to Exhibit 10-3. The point estimate for the difference between the means of the two populations is

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58.5

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9

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-9

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-6

jbsuccess1 · **Reply #1 on:** Mar 25, 2023

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