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Gracehart1 Gracehart1
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7 years ago
A chi-square goodness-of-fit-test is to be used to determine if a distribution is normally distributed. The data will be divided into k categories. Both the mean and standard deviation must be estimated.
 
  The degrees of freedom for this test would be:A) k - 1
  B) k - 2
  C) k - 3
  D) k - 4

Q. 2

To develop a confidence interval for the difference between the means of two populations which are normally distributed and have equal variances, two independent samples of sizes n1 and n2 are randomly selected from the two populations.
 
  What is the formula used to determine the number of degrees of freedom for the t distribution?A) n1 + n2
  B) n1 + n2 - 1
  C) n1 + n2 - 2
  D) n1 + n2 + 1

Q. 3

The value of the F-test statistic is:
 
  A) 1.50
  B) 18.05
  C) 12.05
  D) 3.47

Q. 4

Determine the adjusted coefficient of determination.
 
  A) 0.0419
  B) 0.8223
  C) 0.7335
  D) 0.0018
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asdfghjklqwertyasdfghjklqwerty
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7 years ago
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Gracehart1 Author
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7 years ago
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