Question

A company randomly selected nine office employees and secretly monitored their computers for one month. The times (in hours) spent by these employees using their computers for non–job-related activities (playing games, personal communications, etc.) during this month are as follows: 7 12 9 8 11 4 14 1 6 Assuming that such times for all employees are approximately nor- mally distributed, make a 95% confidence interval for the correspond- ing population mean for all employees of this company.

Name: a company randomly selected nine office employees and secretly monitored their computers for one month the times in hours spent by these employees using their computers for nonjob related activities p
Uploaded: 2022-07-01T10:59:30-08:00
Duration: 2 min 56 s
Channel: Qudsiya Anis
Description: a company randomly selected nine office employees and secretly monitored their computers for one month the times in hours spent by these employees using their computers for nonjob related activities p

          A company randomly selected nine office employees and secretly monitored their computers for one month. The times (in hours) spent by these employees using their computers for non–job-related activities (playing games, personal communications, etc.) during this month are as follows:
7  12  9  8  11  4  14  1 6
Assuming that such times for all employees are approximately nor- mally distributed, make a 95% confidence interval for the correspond- ing population mean for all employees of this company.

Added by Hal R.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Qudsiya Anis

07/01/2022

Step 1

Given data: 7, 12, 9, 8, 11, 4, 14, 1, 6 Sum of all observations = 72 Total number of observations = 9 Sample mean = Sum of all observations / Total number of observations = 72 / 9 = 8 Show more…

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A company randomly selected nine office employees and secretly monitored their computers for one month. The times (in hours) spent by these employees using their computers for non–job-related activities (playing games, personal communications, etc.) during this month are as follows: 7 12 9 8 11 4 14 1 6 Assuming that such times for all employees are approximately nor- mally distributed, make a 95% confidence interval for the correspond- ing population mean for all employees of this company.