To estimate the average time it takes to assemble a certain computer component, the industrial engineer at an electronics firm timed 16 technicians the performance of this task, getting a mean of 12.7 minutes and a standard deviation of 2.1 minutes. Construct a 95% confidence interval of the act average time required to do the job assuming that the actual time follows a normal distribution. (11.581, 13.819) (11.581, 13.620) (11.780, 13.620) (11.780, 13.819)

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QUESTION 7
To estimate the average time it takes to assemble a certain computer component, the industrial engineer at an electronics firm timed 16 technicians in
the performnance of this task, getting a mean of 12.7 minutes and a standard deviation of 2.1 minutes. Construct a 95% confidence interval of the actual
average time required to do the job assuming that the actual time follows a normal distribution.
O (11.581, 13.819)
O (11.581, 13.620)
(11.780, 13.620)
O (11.780, 13.819)
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F10
F8
F6
F5
F3
F4
23
&
8A
41
5
Transcribed Image Text:QUESTION 7 To estimate the average time it takes to assemble a certain computer component, the industrial engineer at an electronics firm timed 16 technicians in the performnance of this task, getting a mean of 12.7 minutes and a standard deviation of 2.1 minutes. Construct a 95% confidence interval of the actual average time required to do the job assuming that the actual time follows a normal distribution. O (11.581, 13.819) O (11.581, 13.620) (11.780, 13.620) O (11.780, 13.819) ick Save and Submit to save and submit. Click Save All Answers to save all answers. Save All F10 F8 F6 F5 F3 F4 23 & 8A 41 5
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