1-20chapter stats

21053 c 218947 d 6042 e 10786 aacsb analytic blooms

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Unformatted text preview: ance level of .10, the management wants to perform a hypothesis test to determine if the quality of the items produced appears to be independent of the production process used. Based on the results summarized in the Mega-Stat/Excel output provided in the table above, we: A. Reject H0 and conclude that the quality of the product is not the same for all processes. B. Reject H0 and conclude that the quality of the product is dependent on the manufacturing process. C. Failed to reject H0 and conclude that the quality of the product does not significantly differ among the three processes. D. Reject H0 and conclude that the quality of the product is independent of the production process utilized. E. Both A and B are correct. AACSB: Reflective Thinking Bloom's: Analysis Difficulty: Hard Learning Objective: 3 Topic: Chi-Square 1-1089 Chapter 01 - An Introduction to Business Statistics 38. A real estate company is analyzing the selling prices of residential homes in a given community. 140 homes that have been solved in the past month are randomly selected and their selling prices are recorded. The statistician working on the project has stated that in order to perform various statistical tests, the data must be distributed according to normal distribution. In order to determine whether the selling prices of homes included in the random sample are normally distributed, the data is divided into 6 classes of equal size and the number of observations in each class is recorded. The chi-square goodness of fit test for normal distribution is performed and the results are summarized in the following table: What is the appropriate null hypothesis? A. H0: The residential home selling prices are distributed according to normal distribution. B. H0: The residential home selling prices are not distributed according to normal distribution. C. H0: The distribution of residential home selling prices is either right or left skewed. D. H0: The distribution of the residential home selling prices is symmetric. E. None of the above is correct. AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 2 Topic: Chi-Square 1-1090 Chapter 01 - An Introduction to Business Statistics 39. A real estate company is analyzing the selling prices of residential homes in a given community. 140 homes that have been solved in the past month are randomly selected and their selling prices are recorded. The statistician working on the project has stated that in order to perform various statistical tests, the data must be distributed according to normal distribution. In order to determine whether the selling prices of homes included in the random sample are normally distributed, the data is divided into 6 classes of equal size and the number of observations in each class is recorded. The chi-square goodness of fit test for normal distribution is performed and the results are summarized in the following table: What are the degrees of freedom for the chi-square test? A. 2 B. 3 C. 4 D. 5 E. 6 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 2 Topic: Chi-Square 1-1091 Chapter 01 - An Introduction to Business Statistics 40. A real estate company is analyzing the selling prices of residential homes in a given community. 140 homes that have been solved in the past month are randomly selected and their selling prices are recorded. The statistician working on the project has stated that in order to perform various statistical tests, the data must be distributed according to normal distribution. In order to determine whether the selling prices of homes included in the random sample are normally distributed, the data is divided into 6 classes of equal size and the number of observations in each class is recorded. The chi-square goodness of fit test for normal distribution is performed and the results are summarized in the following table: At a significance level of .05, what is the appropriate rejection point condition? A. Reject H0 if χ2 > 12.5916 B. Reject H0 if χ2 > 11.0705 C. Reject H0 if χ2 > 9.3484 D. Reject H0 if χ2 > 7.81473 E. Reject H0 if χ2 > 9.48773 AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 2 Topic: Chi-Square 1-1092 Chapter 01 - An Introduction to Business Statistics 41. A real estate company is analyzing the selling prices of residential homes in a given community. 140 homes that have been solved in the past month are randomly selected and their selling prices are recorded. The statistician working on the project has stated that in order to perform various statistical tests, the data must be distributed according to normal distribution. In order to determine whether the selling prices of homes included in the random sample are normally distributed, the data is divided into 6 classes of equal size and the number of observations in each class is recorded. The chi-square goodness of fit test for normal distribution is performed and the results are summarized in the following table:...
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This document was uploaded on 01/20/2014.

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