Suppose an interval estimate for the population mean was 62.84 to ...

[D2AR0N]

Suppose an interval estimate for the population mean was 62.84 to 69.46 . The population standard deviation was assumed to be 6.50, and a sample of 100 observations was used. The mean of the sample was:
 a. 6.62
  b. 56.34
  c. 62.96
  d. 66.15

Question 2

A multiple regression model involves 10 independent variables and 30 observations. If we want to test at the 5 significance level whether one of the coefficients is = 0 (vs.  0) the critical value will be:
 a. 2.228 c. 1.729
  b. 2.093 d. 1.697

[flannelavenger]

Answer to Question 1

D

Answer to Question 2

B