The multiple correlation coefficient is the percent of variation in the dependent variable explained by all of the independent variables.
Indicate whether the statement is true or false
Q. 2Using the multiple regression equation to predict the dependent variable using values of independent variables outside of the range of the original sample can lead to unreliable results.
Indicate whether the statement is true or false
Q. 3The birth year of a person would be considered _________ data.
A) nominal
B) ordinal
C) interval
D) ratio
Q. 4According to Net Market Share, Microsoft's Internet Explorer browser has53.4 of the global market. A random sample of 70 users was selected. What is the probability that 32 or more from this sample used Internet Explorer as their browser?
A) 0.7266
B) 0.8050
C) 0.9015
D) 0.9608
Q. 5The federal government would like to test the hypothesis that the standard deviation for the age of men filing for Social Security is higher than the standard deviation for the age of women.
The following table summarizes sample statistics from each population. Women MenSample standard deviation 2.4 years 3.4 yearsSample size 24 20The test statistic for this hypothesis test would be ________.A) 2.01
B) 4.87
C) 5.60
D) 7.74
Q. 6When testing for the presence of positive autocorrelation and the Durbin-Watson statistic is between the lower critical value and upper critical value, which one of the following statements is true?
A) We fail to reject the null hypothesis and conclude that a positive autocorrelation is present in the time series.
B) We fail to reject the null hypothesis and conclude that no positive autocorrelation is present in the time series.
C) We reject the null hypothesis and conclude that a positive autocorrelation is present in the time series.
D) The hypothesis test is inconclusive.
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