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Author Question: A random sample of 250 students at a university finds that these students take a mean of 14.3 credit ... (Read 129 times)

NClaborn

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on: Feb 14, 2020

Question 1

A random sample of 250 students at a university finds that these students take a mean of 15.3 credit hours per quarter with a standard deviation of 1.6 credit hours. Estimate the mean credit hours taken by a student each quarter using a 95% confidence interval. Round to the nearest thousandth.
◦ 15.3 ± .157
◦ 15.3 ± .010
◦ 15.3 ± .198
◦ 15.3 ± .013

Question 2

A random sample of 250 students at a university finds that these students take a mean of 14.3 credit hours per quarter with a standard deviation of 1.7 credit hours. The 95% confidence interval for the mean is Interpret the interval.
◦ We are 95% confident that the average number of credit hours per quarter of students at the university falls in the interval 14.089 to 14.511 hours.
◦ The probability that a student takes 14.089 to 14.511 credit hours in a quarter is
◦ We are 95% confident that the average number of credit hours per quarter of the sampled students falls in the interval 14.089 to 14.511 hours.
◦ 95% of the students take between 14.089 to 14.511 credit hours per quarter.
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by NClaborn on Feb 14, 2020

jazzlynnnnn

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Reply #1 on: Feb 14, 2020
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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NClaborn

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Reply 2 on: Feb 14, 2020
Gracias!

Kedrick2014

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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