Question: Telemarketers generally read from a prepared script when they make
Telemarketers generally read from a prepared script when they make their sales calls. A firm decides to change this prepared script, making it both friendlier and shorter. The numbers of daily sales are recorded for a random sample of telemarketers, before and after the script change. The data are shown in Exhibit 9.38.
Do the data suggest that there is a difference in the numbers of daily sales before and after the script change? Use α = 0.05.
Relevant QuestionsThe Student Services Department at a Prince Edward Island college wants to see whether there are differences in the study habits of male and female students. A random sample of female students is selected, and then a ...An accounting firm is testing a new software program. The company selects a random sample of workers and trains them on the new software until the employees are equally comfort able with the two programs. These workers are ...A company hires a consulting firm to conduct a seminar to improve workers’ sense of self-esteem. Employees are given a test to assess their self-esteem before the seminar, and again afterwards. The test scores are shown ...Why is the computer-based version of the Sign Test preferred to the version using the sampling distribution of p`? Construct a 95% confidence interval estimate for the average difference in purchases made by female customers compared to male customers, based on the data in Exercise 2 above. Do you expect this confidence interval to ...
Post your question