Given that Z is a standard normal variable, the value z1 for which P(Z z1 ) = 0.242 is:
A) 0.70
B) 0.65
C) -0.70
D) -0.65
Q. 2The F test used for testing the difference in two population variances is always a one-tailed test.
Indicate whether the statement is true or false
Q. 3How would the officer interpret the coefficient on x3?
A) As the total loan amount increases, the amount of advertising increases at an increasing rate.
B) As the amount of advertising increases, the total loan amount increases at an increasing rate.
C) As the amount of advertising increases, the total loan amount increases at a decreasing rate.
D) As the total loan amount increases, the amount of advertising increases at a decreasing rate.
Q. 4Consider the following data set: 16, 16, 17, 18, 20, 21, 21, 22, 23, 24, 25, 27, 27, 27, 27, and 30. The rank assigned to the four observations of value 27 is:
A) 13
B) 13.5
C) 12
D) 12.5
Q. 5If events A and B are mutually exclusive and collectively exhaustive, then the complement of event A is identical to event B.
Indicate whether the statement is true or false
Q. 6If the campaign manager of a US senator is interested in estimating the proportion of registered voters who will support the senator during the next election, the sample proportion would be the appropriate point estimate.
Indicate whether the statement is true or false
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