In a random sample of 60 computers, the mean repair cost was $150 and assume that the population standard deviation is $36. Construct a 90% confidence interval for the population mean.O A. ($141,$159)OB. ($138,$162)OC. ($537,$654)OD. ($142,$158) A random sample of 40 students has a mean annual earnings of $3120 and assume that the population standard deviation is $677. Find the margin of error if c 0.95.O A. $210O B. $77O C. $2891O D. $7

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Description: In a random sample of 60 computers, the mean repair cost was $150 and assume that the population standard deviation is $36. Construct a 90% confidence interval for the population mean.O A. ($141,$159)OB. ($138,$162)OC. ($537,$654)OD. ($142,$158) A r

Given Information: Sample size n=60 Sample mean x¯=150 Population standard deviation σ=36 Required:…

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In a random sample of 60 computers, the mean repair cost was $150 and assume that the population standard deviation is $36. Construct a 90% confidence interval for the populaliorn O A. ($141,$159) OB. ($138,$162) OC. ($537,$654) OD. ($142,$158)

In a random sample of 60 computers, the mean repair cost was $150 and assume that the population standard deviation is $36. Construct a 90% confidence interval for the populaliorn O A. ($141,$159) OB. ($138,$162) OC. ($537,$654) OD. ($142,$158)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 23PFA

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Question

In a random sample of 60 computers, the mean repair cost was $150 and assume that the population standard deviation is $36. Construct a 90% confidence interval for the population mean.
O A. ($141,$159)
OB. ($138,$162)
OC. ($537,$654)
OD. ($142,$158)

A random sample of 40 students has a mean annual earnings of $3120 and assume that the population standard deviation is $677. Find the margin of error if c 0.95.
O A. $210
O B. $77
O C. $2891
O D. $7

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