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While a binomial distribution describes a count data

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Unformatted text preview: pter 01 - An Introduction to Business Statistics 54. Consider the 3X2 contingency table below. Compute the expected frequencies in row 3. A. 20, 30 B. 15, 15 C. 12, 18 D. 9, 21 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 1 Topic: Chi-Square 55. Consider the 3X2 contingency table below. How many degrees of freedom are associated with the chi-square test? A. 6 B. 5 C. 2 D. 3 Degrees of freedom = (3 - 1) (2 - 1) = 2 AACSB: Analytic Bloom's: Application Difficulty: Easy Learning Objective: 1 Topic: Chi-Square 1-1100 Chapter 01 - An Introduction to Business Statistics 56. Consider the 3X2 contingency table below. At = .05, determine the tabular value of the chi-square statistic used to test for the independence of Factors A and B? A. 12.6 B. 11.1 C. 7.81 D. 5.99 χ2.05,2 = 5.99 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 3 Topic: Chi-Square 1-1101 Chapter 01 - An Introduction to Business Statistics 57. Consider the 3X2 contingency table below. At a significance level of .05, test H0: the factors A and B are independent. A. Reject H0 B. Fail to reject H0 AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 3 Topic: Chi-Square 1-1102 Chapter 01 - An Introduction to Business Statistics 58. Consider a set of 50 measurements with mean 50.2 and standard deviation 18.7 and with the following observed frequencies. It is desired to test whether these measurements came from a normal population. Calculate the expected frequency for the interval 0-39.99. A. 10.44 B. 12.00 C. 14.56 D. 12.50 AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 2 Topic: Chi-Square 1-1103 Chapter 01 - An Introduction to Business Statistics 59. Consider a set of 50 measurements with mean 50.2 and standard deviation 18.7 and with the following observed frequencies. It is desired to test whether these measurements came from a normal population. Calculate the expected frequency for the interval 40-59.99. A. 20.37 B. 18.00 C. 14.56 D. 12.50 AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 2 Topic: Chi-Square 1-1104 Chapter 01 - An Introduction to Business Statistics 60. Consider a set of 50 measurements with mean 50.2 and standard deviation 18.7 and with the following observed frequencies. It is desired to test whether these measurements came from a normal population. Calculate the expected frequency for the interval 60-79.99. A. 15.00 B. 14.56 C. 12.28 D. 9.93 AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 2 Topic: Chi-Square 1-1105 Chapter 01 - An Introduction to Business Statistics 61. Consider a set of 50 measurements with mean 50.2 and standard deviation 18.7 and with the following observed frequencies. It is desired to test whether these measurements came from a normal population. Calculate the expected frequency for the interval 80 and higher. A. 5.00 B. 12.50 C. 2.80 D. 22.21 AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 2 Topic: Chi-Square 1-1106 Chapter 01 - An Introduction to Business Statistics 62. Consider a set of 50 measurements with mean 50.2 and standard deviation 18.7 and with the following observed frequencies. It is desired to test whether these measurements came from a normal population. How many degrees of freedom are associated with the chi-square test? A. 1 B. 4 C. 3 D. 2 4-2-1=1 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 2 Topic: Chi-Square 1-1107 Chapter 01 - An Introduction to Business Statistics 63. Consider a set of 50 measurements with mean 50.2 and standard deviation 18.7 and with the following observed and expected frequencies. It is desired to test whether these measurements came from a normal population. Calculate the value of the chi-square test statistic? A. 2.32 B. 3.07 C. 1.30 D. 0.72 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 2 Topic: Chi-Square 1-1108 Chapter 01 - An Introduction to Business Statistics 64. Consider a set of 50 measurements with mean 50.2 and standard deviation 18.7 and with the following observed and expected frequencies. It is desired to test whether these measurements came from a normal population. At a significance level of .05, test H0: the set of 50 measurements came from a normal population. A. Reject H0 B. Fail to reject H0 AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 2 Topic: Chi-Square 1-1109 Chapter 01 - An Introduction to Business Statistics 65. A U.S. based internet company offers an on-line proficiency course in basic accounting. Completion of this online course satisfies the "Fundamentals of Accounting" course requirement in many MBA programs. In the first semester 315 students have enrolled in the course. The marketing research manager divided the country into seven regions of approximately equal populations. The course enrollment values in each of the seven regions are given below. The management wants...
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