Homework Help is Here – Start Your Trial Now!
Math
Statistics
Corporate sustainability of CPA firms. Refer to the Business and Society (March 2011) study on the sus- tainability behaviors of CPA corporations, Exercise 6.12 (p. 308). Recall that the level of support for corporate sustainability (measured on a quantitative scale ranging from 0 to 160 points) was obtained for each in a sample of 992 scnior manage rs at CPA firms. The data (where higher point values indicate a higher level of support for sustain- ability) are saved in the accompanying file. The CEO of a CPA firm claims that the true mean level of support for sustainability is 75 points. a. Specity the null and alternative hypotheses for testing this claim. b. For this problem, what is a Type I error? A Type II error? e. The XLSTAT printout on the following page gives the results of the test. Locate the test statistic and p-value on the printout. d. At a- 05, give the appropriate conclusion. e. What assumptions, if any, about the distribution of sup- port levels must hold true in order for the inference derived from the test to be valid? Explain. B XLSTAT 2011.4.02 - One-sample t-test and z-test Theoretical mean: 75 Significance level (%): 5 Summary statistics Summary statisties: Variable Observations Minimum Maximum Mean Std. devistion Suppert 992 0.0000 155.0000 67.7550 26.3707 One-sample 2-test / Two-tailed test: 95% confidence interval on the mean: ( 66.0829, 69.4271) Difference -7.2450 2 (Obsorved value) 12) (Critical value) p-value (Two-tailad) alpha -8.4923 1.9600 <0,0001 0.05

Corporate sustainability of CPA firms. Refer to the Business and Society (March 2011) study on the sus- tainability behaviors of CPA corporations, Exercise 6.12 (p. 308). Recall that the level of support for corporate sustainability (measured on a quantitative scale ranging from 0 to 160 points) was obtained for each in a sample of 992 scnior manage rs at CPA firms. The data (where higher point values indicate a higher level of support for sustain- ability) are saved in the accompanying file. The CEO of a CPA firm claims that the true mean level of support for sustainability is 75 points. a. Specity the null and alternative hypotheses for testing this claim. b. For this problem, what is a Type I error? A Type II error? e. The XLSTAT printout on the following page gives the results of the test. Locate the test statistic and p-value on the printout. d. At a- 05, give the appropriate conclusion. e. What assumptions, if any, about the distribution of sup- port levels must hold true in order for the inference derived from the test to be valid? Explain. B XLSTAT 2011.4.02 - One-sample t-test and z-test Theoretical mean: 75 Significance level (%): 5 Summary statistics Summary statisties: Variable Observations Minimum Maximum Mean Std. devistion Suppert 992 0.0000 155.0000 67.7550 26.3707 One-sample 2-test / Two-tailed test: 95% confidence interval on the mean: ( 66.0829, 69.4271) Difference -7.2450 2 (Obsorved value) 12) (Critical value) p-value (Two-tailad) alpha -8.4923 1.9600 <0,0001 0.05

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
Corporate sustainability of CPA firms. Refer to the Business and Society (March 2011) study on the sus- tainability behaviors of CPA corporations, Exercise 6.12 (p. 308). Recall that the levcl of support for corporate sustainability (measured on a quantitative scale ranging from 0 to 160 points) was obtained for each in a sample of 992 scnior managers at CPA firms. The datsa (where higher paint values indicate a higher level of support for sustain- ability) are saved in the accompanying file. The CEO of a CPA firm claims that the true mean level of support for sustainability is 75 points. a. Specity the null and alternative hypotheses for testing this claim. b. For this problem, what is a Type lerror? A Type II error? c. The XLSTAT printout on the following page gives the results of the test. Locate the test statistic and p-value on the printout. 05, give the appropriate conclusion. e. What assumptions, if any, about the distribution of sup- port levels must hold true in order for the inference derived from the test to be valid? Explain. d. At a XLSTAT 2011.4.02 - One-sample t-test and z-test Theoretical mean: 75 Significance level (%): 5 Summary statistics Summary statisties: Variable Observations Minimum Maximum Mean Std. devistion Suppert 992 0.0000 155.0000 67.7550 26.8707 One-sample 2-test / Two-tailad test: 95% confidence interval on the mean: ( 66.0829, 69.4271) Dfference -7.2450 2 (Obsorved value) 12) (Critical value) p-value (Two-tailad) alpha -8.4923 1.9600 <0.0001 0.05 XLSTAT output for Exercise 732
Transcribed Image Text:Corporate sustainability of CPA firms. Refer to the Business and Society (March 2011) study on the sus- tainability behaviors of CPA corporations, Exercise 6.12 (p. 308). Recall that the levcl of support for corporate sustainability (measured on a quantitative scale ranging from 0 to 160 points) was obtained for each in a sample of 992 scnior managers at CPA firms. The datsa (where higher paint values indicate a higher level of support for sustain- ability) are saved in the accompanying file. The CEO of a CPA firm claims that the true mean level of support for sustainability is 75 points. a. Specity the null and alternative hypotheses for testing this claim. b. For this problem, what is a Type lerror? A Type II error? c. The XLSTAT printout on the following page gives the results of the test. Locate the test statistic and p-value on the printout. 05, give the appropriate conclusion. e. What assumptions, if any, about the distribution of sup- port levels must hold true in order for the inference derived from the test to be valid? Explain. d. At a XLSTAT 2011.4.02 - One-sample t-test and z-test Theoretical mean: 75 Significance level (%): 5 Summary statistics Summary statisties: Variable Observations Minimum Maximum Mean Std. devistion Suppert 992 0.0000 155.0000 67.7550 26.8707 One-sample 2-test / Two-tailad test: 95% confidence interval on the mean: ( 66.0829, 69.4271) Dfference -7.2450 2 (Obsorved value) 12) (Critical value) p-value (Two-tailad) alpha -8.4923 1.9600 <0.0001 0.05 XLSTAT output for Exercise 732
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS