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Author Question: A company has 600 employees. A random sample of 49 employees took a computer literacy test. The ... (Read 158 times)

lracut11

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on: Jun 24, 2018
A company has 600 employees. A random sample of 49 employees took a computer literacy test. The sample resulted in a mean score of 75 with a standard deviation of 21.
 a. Estimate the standard error of the mean.
  b. Develop an approximate 95 confidence interval for the population mean of the 600 employees.

Question 2

According to the Empirical Rule, if the data form a bell shaped normal distribution approximately ___________________ _ percent of the observations will be contained within 1 standard deviation around the mean.
 Fill in the blank(s) with correct word


medine

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Reply #1 on: Jun 24, 2018
Answer to Question 1

a. 2.9 (rounded)
b. 69.2 to 80.8 (rounded)

Answer to Question 2

68


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