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Author Question: For sample sizes greater than 30, the sampling distribution of the mean is approximately normally ... (Read 143 times)

ishan

  • Hero Member
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  • Posts: 546
on: Jun 24, 2018
For sample sizes greater than 30, the sampling distribution of the mean is approximately normally distributed:
 a. regardless of the shape of the population.
  b. only if the shape of the population is symmetric.
  c. only if the population is normally distributed.
  d. None of these choices.

Question 2

In regression analysis, if the coefficient of determination is 1.0, then:
 a. the sum of squares for error must be 1.0
  b. the sum of squares for regression must be 1.0
  c. the sum of squares for error must be 0.0
  d. the sum of squares for regression must be 0.0


lkanara2

  • Sr. Member
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  • Posts: 329
Reply #1 on: Jun 24, 2018
Answer to Question 1

A

Answer to Question 2

C


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