Question: Each of a random sample of 10 customer service representatives
Each of a random sample of 10 customer service representatives from a large department store chain answers a questionnaire about how they respond to various customer complaints. Based on the responses, a summary score measures how positively the employees react to complaints. This is measured both before and after employees undergo an intensive training course designed to improve such scores. A report about the study states, “The mean was significantly higher after taking the training course [t = 3.40 (df = 9), P-value 6 0.05].” Explain how to interpret this to someone who has never studied statistics. What else should have been reported, to make this more informative?
Answer to relevant QuestionsA tire manufacturer believes that a new tire it is introducing (Brand A) will have longer wear than the comparable tire (Brand B) sold by its main competitor. To get evidence to back up its claim in planned advertising, the ...In pro basketball games during 1980–1982, when Larry Bird of the Boston Celtics missed his first free throw, 48 out of 53 times he made the second one, and when he made his first free throw, 251 out of 285 times he made ...Every year, a large-scale poll of college freshmen conducted by the Higher Education Research Institute at UCLA asks their opinions about a variety of issues. In 2004, although women were more likely to rate their time ...For murders in the United States in 2009, the table cross-tabulates the sex of the victim by the sex of the offender. Find and interpret a measure of association, treating sex of victim as the response variable. The table in Exercise 11.1 on gender and party identification is shown again. The largest standardized residuals in absolute value were 2.69 for females who identified as Democrats and -2.69 for males who identified as ...
Post your question