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Business Analytics> QUESTIONS & ANSWERS > Chapter 9: Business Analytics_ Data Analysis _ Decision Making (All)
1. The null hypothesis usually represents the: a. theory the researcher would like to prove. b. preconceived ideas of the researcher c. perceptions of the sample population d. status quo 2. In st...
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Business Analytics> QUESTIONS & ANSWERS > Chapter 8: Business Analytics_ Data Analysis _ Decision Making (All)
1. The chi-square and F-distributions are used primarily to make inferences about population ___________. a. means b. variances c. medians d. modes e. proportions 2. When we replace with the s...
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Business Analytics> QUESTIONS & ANSWERS > Chapter 7: Business Analytics_ Data Analysis _ Decision Making (All)
1. The standard error of sample mean is large when the observations in the population are spread out (large ), but that the standard error can be reduced by taking a smaller sample. a. True b. Fals...
By EDUCATOR
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Business Analytics> QUESTIONS & ANSWERS > Chapter 6: Business Analytics_ Data Analysis _ Decision Making (All)
1. Which of the following is true with regard to a good decision? a. It ensures that good outcomes will be obtained b. It accounts for unlucky outcomes c. It should be independent of the sequencing...
By EDUCATOR
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Business Analytics> QUESTIONS & ANSWERS > Chapter 5: Business Analytics_ Data Analysis _ Decision Making (All)
A popular retail store knows that the distribution of purchase amounts by its customers is approximately normal with a mean of $30 and a standard deviation of $9. Below you will find normal probabili...
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