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Author Question: College admissions administrators at a university are reevaluating their entrance requirements. They ... (Read 42 times)

joe3899

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on: Feb 26, 2023
College admissions administrators at a university are reevaluating their entrance requirements. They believe that the mean GPA for graduating high school seniors has increased dramatically over the last decade. They randomly sample 85 records of graduating seniors from 10 years ago (sample 1) and find an average GPA of 2.68. An independent random sample of 80 current graduating seniors yields an average GPA of 2.94. If the population variance of high school GPAs is 0.2601, find a 95% confidence interval for the difference in population mean GPA over the last decade.

◦

(–0.42, –0.10)


◦

(–0.29, –0.13)


◦

(–0.36, –0.16)


◦

(–0.46, –0.05)

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Marked as best answer by joe3899 on Feb 26, 2023

dude123

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Reply #1 on: Feb 26, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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joe3899

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Reply 2 on: Feb 26, 2023
:D TYSM

bbburns21

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Reply 3 on: Yesterday
Excellent

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