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Author Question: The ages of the members of a gym have a mean of 42 years and a standard deviation of 12. Use the ... (Read 55 times)

TVarnum

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on: Aug 1, 2018
The ages of the members of a gym have a mean of 42 years and a standard deviation of 12. Use the range rule of thumb to estimate the minimum and maximum usual ages.
 
  A) 18 years, 66 years B) 20 years, 68 years C) 17 years, 67 years D) 30 years, 54 years

Question 2

The chi-square test of independence compares to .
 
  a. sample means; population means
  b. sample marginals; population marginals
  c. observed frequencies; expected frequencies
  d. sample frequencies; population frequencies


meryzewe

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Reply #1 on: Aug 1, 2018
Answer to Question 1

A

Answer to Question 2

C


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