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Author Question: A local library is evaluating the possibility of expanding its hours of operation. The library staff ... (Read 120 times)

dhsndn

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on: Feb 26, 2023
A local library is evaluating the possibility of expanding its hours of operation. The library staff want to estimate the mean number of persons who patronize the library during the peak weekday hours from 3:30 P.M. to 5:00 P.M. They randomly sample 12 weekdays and find an average attendance of 220.15, with a standard deviation of 22.4. What is a 90% confidence interval for the true mean weekly patronage during the peak hours?

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(208.627, 231.673)


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(209.514, 230.787)


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(179.920, 260.380)


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(208.537, 231.763)

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Marked as best answer by dhsndn on Feb 26, 2023

ludadtpb

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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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dhsndn

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Reply 2 on: Feb 26, 2023
:D TYSM

shailee

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Reply 3 on: Yesterday
Wow, this really help

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