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Author Question: In order to estimate the average time spent on the computer terminals per student, data were ... (Read 80 times)

shivanipalawai@gmail.com

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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


◦

22


◦

23


◦

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


◦

0.30


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5


◦

7

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by shivanipalawai@gmail.com on Mar 25, 2023

xinyiff

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Reply #1 on: Mar 25, 2023
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shivanipalawai@gmail.com

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Reply 2 on: Mar 25, 2023
YES! Correct, THANKS for helping me on my review

Laurenleakan

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Reply 3 on: Yesterday
Wow, this really help

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