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Author Question: There are 8,000 students at the University of Tennessee at Chattanooga. The average age of all the ... (Read 130 times)

olivia_rose

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on: Mar 25, 2023

Question 1

There are 500 employees in a firm, 45% are female. A sample of 60 employees is selected randomly.

a.Determine the standard error of the proportion.
b.What is the probability that the sample proportion (proportion of females) is between 0.40 and 0.55?



Question 2

There are 8,000 students at the University of Tennessee at Chattanooga. The average age of all the students is 24 years with a standard deviation of 9 years. A random sample of 36 students is selected.

a.Determine the standard error of the mean.
b.What is the probability that the sample mean will be larger than 19.5?
c.What is the probability that the sample mean will be between 25.5 and 27 years?

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

Sophia0717

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Reply #1 on: Mar 25, 2023
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olivia_rose

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

adf223

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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