The expected profit with perfect information for a profit payoff table is calculated by using the _______ values
in each _____ (row, column).
Fill in the blank(s) with correct word
Q. 2It is impossible to apply the central limit theorem if the population does not follow a normal distribution.
Indicate whether the statement is true or false
Q. 3The standard deviation measures the dispersion of the y values about the estimated least-squares line.
Indicate whether the statement is true or false
Q. 4Two events A and B are said to be independent if P(AB) = _________.
A) P(A B) B) P(A) C) P(BA) D) P(B)
Q. 5Which is important in designing a good experiment?
I. Randomization in assigning subjects to treatments.
II. Control of potentially confounding variables.
III. Replication of the experiment on a sufficient number of subjects.
A) I and II B) I only C) I and III D) I, II, and III E) II and III
Q. 6We believe that 75 of the population of all Calculus I students consider calculus an exciting subject. Suppose we randomly and independently selected 38 students from the population.
If the true percentage is really 75, find the probability of observing 37 or more of the students who consider calculus to be an exciting subject in our sample of 38.
A) 0.999756 B) 0.000018 C) 0.000244 D) 0.000226
Q. 7The sample coefficient r is an estimate of __________ .
Fill in the blank(s) with correct word
Q. 8For a sample size of 15 values, if the largest value is increased, the midquartile is increased.
Indicate whether the statement is true or false
Q. 9In a hypothesis test that a population mean is at least 50, it is a Type I error to conclude that the mean is
A) at least 50 when it is not. B) at least 50 when it is.
C) less than 50 when it is not. D) less than 50 when it is.
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