Questions from Business Statistics

Q: A company hoping to assess employee satisfaction surveys employees by assigning computer

A company hoping to assess employee satisfaction surveys employees by assigning computer-generated random numbers to each employee on a list of all employees and then contacting all those whose assign...

Q: Here are the same three prices as in Exercise 15 but for

Here are the same three prices as in Exercise 15 but for 576 cities around the world. (Prices are all in US$ as of August 2016; data in COLall 2016.) 1. In general, which commodity is the most expensi...

Q: For each scenario, identify the kind of sample used by the

For each scenario, identify the kind of sample used by the university administrators from Exercise 1: 1. Select several dormitories at random and contact everyone living in the selected dorms. 2. Usin...

Q: For each scenario, determine the sampling method used by the managers

For each scenario, determine the sampling method used by the managers from Exercise 2. 1. Use the company e-mail directory to contact 150 employees from among those employed for less than 5 years, 150...

Q: What problems do you see with asking the following question of students

What problems do you see with asking the following question of students? Are you the first member of your family to seek higher education?

Q: The 1990s and early 2000s could be considered the steroids era in

The 1990s and early 2000s could be considered the steroids era in Major League Baseball, as many players have admitted to using the drug to increase performance on the field. If a sports writer wanted...

Q: If the tomato taster doesn’t know how the tomatoes have been treated

If the tomato taster doesn’t know how the tomatoes have been treated, is the experiment single- or double-blind? How might the blinding be improved further?

Q: The driver of Exercise 3 wants to know about tipping in general

The driver of Exercise 3 wants to know about tipping in general. So he recruits several other drivers to participate in the experiment. Each driver randomly decides whether to phone customers before d...

Q: To obtain enough plants for the tomato experiment of Exercise 4,

To obtain enough plants for the tomato experiment of Exercise 4, experimenters have to purchase plants from two different garden centers. They then randomly assign the plants from each garden center t...

Q: For the experiment of Exercise 3, name some confounding variables that

For the experiment of Exercise 3, name some confounding variables that might influence the experiment results.