Author Question: In order to estimate the average time spent on the computer terminals per student, data were ... (Read 72 times)

shivanipalawai@gmail.com · **on:** Mar 25, 2023

Question 1

In order to determine an interval for the mean of a population with unknown standard deviation a sample of 61 items is selected. The mean of the sample is determined to be 23. The number of degrees of freedom for reading the t value is

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22

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23

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60

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61

Question 2

In order to estimate the average time spent on the computer terminals per student, data were collected for a sample of 49 business students over a one week period. Assume the population standard deviation is 1.4 hours. The standard error of the mean is

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0.20

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0.30

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5

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7

xinyiff · **Reply #1 on:** Mar 25, 2023

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