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Author Question: The confidence interval for the difference between two population means that are normally ... (Read 122 times)

Marty

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on: Jun 24, 2018
The confidence interval for the difference between two population means that are normally distributed where the population variances are unknown and are not assumed to be equal rely on the use of:
 
  A) the average sample variance.
  B) the estimated sample variance.
  C) Satterthwaite's approximation.
  D) the pooled variance.

Question 2

Determine the slope of the least squares regression line.
 
  A) 10.48
  B) 18.05
  C) 3.57
  D) 0.46


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Expo

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

C

Answer to Question 2

D


Marty

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Reply #2 on: Jun 24, 2018
Thank you


Expo

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Reply #3 on: Jun 24, 2018
No problemo


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