Author Question: After completing sales training for a large company, it is expected that the salesperson will ... (Read 18 times)

mydiamond

  • Hero Member
  • *****
  • Posts: 804
After completing sales training for a large company, it is expected that the salesperson will generate a sale on at least 15 percent of the calls he or she makes.
 
  To make sure that the sales training process is working, a random sample of n = 400 sales calls made by sales representatives who have completed the training have been selected and the null hypothesis is to be tested at 0.05 alpha level. Suppose that a sale is made on 36 of the calls. Based on this information, what is the test statistic for this test?A) Approximately 0.1417
  B) About z = -3.35
  C) z = -1.645
  D) t = -4.567

Question 2

Which of the following statements is true?
 
  A) A binomial distribution with n = 20 and p = 0.05 will be right-skewed.
  B) A binomial distribution with n = 6 and p = 0.50 will be symmetric.
  C) A binomial distribution with n = 20 and p = 0.05 has an expected value equal to 1.
  D) A, B, and C are all true.



Yixagurpuldink

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

B

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

For a complete list of videos, visit our video library