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Author Question: To develop a confidence interval for the difference between the means of two populations which are ... (Read 57 times)

Coya19@aol.com

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on: Jun 24, 2018
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

Question 2

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


Meganchabluk

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

C

Answer to Question 2

C


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