The confidence interval for the difference between two population ...

[Marty]

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

[Expo]

Answer to Question 1

C

Answer to Question 2

D

[Marty]

Thank you

[Expo]

No problemo