Find a 90 confidence interval for the difference in the amount of power consumed at high voltages by the two models.
A) 0.2 0.49
B) 0.2 0.16
C) 0.2 0.05
D) 0.2 1.28
Q. 2In multiple regression analysis, it is possible that the multiple coefficient of determination will be equal to -0.50.
Indicate whether the statement is true or false
Q. 3Normal probability plots provide a way to test the assumption that the normal distribution is a close approximation to the actual unknown distribution that supplied the data we are analyzing.
Indicate whether the statement is true or false
Q. 4The test statistic for the Jarque-Bera test for normality does not depend on the:
A) measure of skewness.
B) measure of kurtosis.
C) sample size.
D) tied values in the data set.
Q. 5Which of the following years has the forecast value 98.44?
A) 1894
B) 1899
C) 1902
D) 1904
Q. 6What proportion of all houses took 30 days or more to sell?
What will be an ideal response?
Q. 7Multiple regression coefficients are conditional coefficients; that is, the estimated coefficient bi depends on the other variables included in the model.
Indicate whether the statement is true or false
Quick Reply
