1-20chapter stats

A median b variance c mode d average aacsb reflective

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ective Thinking Bloom's: Evaluation Difficulty: Medium Learning Objective: 1 Topic: Sign Test 1-1830 Chapter 01 - An Introduction to Business Statistics 65. Five years ago, the average starting salary of a new college graduate with a major in marketing was $34,000. A random sample of 10 graduates from this year's graduating class of a local university yielded the following starting salaries in thousands of dollars: 28, 36, 25, 37, 35, 24, 38, 45, 39, and 36. The local university wants to determine if the median starting salary for marketing graduates has increased in the last five years. State the alternative hypothesis. Assume that the population of starting salaries in marketing is not normally distributed. A. H0: Md < 34,000 B. H0: Md > 34,000 C. H0: Md ≠ 34,000 D. H0: Md = 34,000 H0: Md ≤ 34,000 or H0: Md = 34,000, HA: Md > 34,000 AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Hard Learning Objective: 1 Topic: Sign Test 66. Five years ago, the average starting salary of a new college graduate with a major in marketing was $34,000. A random sample of 10 graduates from this year's graduating class of a local university yielded the following starting salaries in thousands of dollars: 28, 36, 25, 37, 35, 24, 38, 45, 39, and 36. The local university wants to determine if the median starting salary for marketing graduates has increased in the last five years. Assume that the population of starting salaries in marketing is not normally distributed. Using α = .05, can we conclude that the starting salaries increased in the last five years? A. Reject the null hypothesis B. Fail to reject the null hypothesis H0: Md ≤ 34,000 or H0: Md = 34,000, HA: Md > 34,000 Reject H0 if p-value is < α p-value = P(X ≥ 8) = (.0439) + (.0098) + (.001) = .0547 .0547 > .05, failed to reject H0 It appears that the median starting salary for marketing graduates has not significantly increased. AACSB: Analytic Skills Bloom's: Application Difficulty: Hard Learning Objective: 1 Topic: Sign Test 1-1831 Chapter 01 - An Introduction to Business Statistics 67. Five years ago, the average starting salary of a new college graduate with a major in marketing was $34,000. A random sample of 10 graduates from this year's graduating class of a local university yielded the following starting salaries in thousands of dollars: 28, 36, 25, 37, 35, 24, 38, 45, 39, and 36. The local university wants to determine if the median starting salary for marketing graduates has increased in the last five years. Assume that the population of starting salaries in marketing is not normally distributed. The p-value is found to be .0547. Using α = .10, can we conclude that the starting salaries increased in the last five years? A. Yes B. No No (.0547 < .10) AACSB: Reflective Thinking Bloom's: Evaluation Difficulty: Medium Learning Objective: 1 Topic: Sign Test 1-1832 Chapter 01 - An Introduction to Business Statistics 68. An e-business/e-commerce information technology consulting company wants to compare the effectiveness of three programming languages that its programmers use. Currently each programming language is used by approximately 1/3 of the programmers employed by the company. The director of programming division randomly selected 5 programmers from the users of each of the three programming languages and assigned the same simple programming task to each programmer. It is known that all three populations have highly skewed distributions with extreme outliers. Calculate the value of Ti (rank sum) for Program B. A. 23 B. 48 C. 49 D. 57 AACSB: Analytic Skills Bloom's: Application Difficulty: Medium Learning Objective: 2 Topic: Rank Sum 1-1833 Chapter 01 - An Introduction to Business Statistics 69. An e-business/e-commerce information technology consulting company wants to compare the effectiveness of three programming languages that its programmers use. Currently each programming language is used by approximately 1/3 of the programmers employed by the company. The director of programming division randomly selected 5 programmers from the users of each of the three programming languages and assigned the same simple programming task to each programmer. It is known that all three populations have highly skewed distributions with extreme outliers. The rank sum values for each of the programming groups are: T1 = 23, T2 = 48, and T3 = 49. At α = .05, does the median time required to program a simple task differ between the three different programming languages? A. H = 4.34, reject the null hypothesis B. H = 4.24, fail to reject the null hypothesis C. H = 5.99, reject the null hypothesis D. H = 5.99, fail to reject the null hypothesis 4.34 < 5.99, failed to reject H0. It appears that the median time to complete the simple programming task does not significantly differ among the three different programming languages. AACSB: Analytic Skills Bloom's: Application Difficulty: Medium Learning Objective: 2 Topic: Rank Sum 1-1834 Chapter 01 - An...
View Full Document

Ask a homework question - tutors are online