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2.79 Semester hours taken by CPA candidates. Refer to the Journal of Accounting and Public Policy (Spring 2002) study of 100,000 first-time candidates for the CPA exam, Exercise 2.51 (p. 72). Recall that the mean number of semester hours of college credit taken by the candidates was 141.31 hours. The standard-deviation was reported to be 17.77 hours. a.Compute the 2-standard-deviation interval around the mean. b.Make a statement about the proportion of first-time candidates for the CPA exam who have total college credit hours within the interval, part a. c.For the statement, part b, to be true, what must be known about the shape of the distribution of total semester hours?

2.79 Semester hours taken by CPA candidates. Refer to the Journal of Accounting and Public Policy (Spring 2002) study of 100,000 first-time candidates for the CPA exam, Exercise 2.51 (p. 72). Recall that the mean number of semester hours of college credit taken by the candidates was 141.31 hours. The standard-deviation was reported to be 17.77 hours. a.Compute the 2-standard-deviation interval around the mean. b.Make a statement about the proportion of first-time candidates for the CPA exam who have total college credit hours within the interval, part a. c.For the statement, part b, to be true, what must be known about the shape of the distribution of total semester hours?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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2.79 Semester hours taken by CPA candidates. Refer to the Journal of Accounting and Public Policy (Spring 2002) study of 100,000 first-time candidates for the CPA exam, Exercise 2.51 (p. 72). Recall that the mean number of semester hours of college credit taken by the candidates was 141.31 hours. The standard-deviation was reported to be 17.77 hours.

a.Compute the 2-standard-deviation interval around the mean.

b.Make a statement about the proportion of first-time candidates for the CPA exam who have total college credit hours within the interval, part a.

c.For the statement, part b, to be true, what must be known about the shape of the distribution of total semester hours?

2.73 According to the Empirical Rule: Approximately 68% of the measurements will be contained in the interval -s to F+s. a. b. Approximately 95% of the measurements will be contained in the interval -2s to I+2s. с. Essentially all the measurements will be contained in the intervalF- 3s to F + 3s .
Transcribed Image Text:2.73 According to the Empirical Rule: Approximately 68% of the measurements will be contained in the interval -s to F+s. a. b. Approximately 95% of the measurements will be contained in the interval -2s to I+2s. с. Essentially all the measurements will be contained in the intervalF- 3s to F + 3s .
2.79 Semester hours taken by CPA candidates. Refer to the Journal of Accounting and Public Policy (Spring 2002) study of 100,000 first-time candidates for the CPA exam, Exercise 2.510 (p. 72). Recall that the mean number of semester hours of college credit taken by the candidates was 141.31 hours. The standard-deviation was reported to be 17.77 hours. a. Compute the 2-standard-deviation interval around the mean. b. Make a statement about the proportion of first-time candidates for the CPA exam who have total college credit hours within the interval, part a. C. For the statement, part b, to be true, what must be known about the shape of the distribution of total semester hours?
Transcribed Image Text:2.79 Semester hours taken by CPA candidates. Refer to the Journal of Accounting and Public Policy (Spring 2002) study of 100,000 first-time candidates for the CPA exam, Exercise 2.510 (p. 72). Recall that the mean number of semester hours of college credit taken by the candidates was 141.31 hours. The standard-deviation was reported to be 17.77 hours. a. Compute the 2-standard-deviation interval around the mean. b. Make a statement about the proportion of first-time candidates for the CPA exam who have total college credit hours within the interval, part a. C. For the statement, part b, to be true, what must be known about the shape of the distribution of total semester hours?
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