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.
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