After Completing Sales Training for a Large Company, It Is

question 118

Multiple Choice

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

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Definitions:

Nondisjunction

An error in cell division that results in daughter cells with an incorrect number of chromosomes, leading to genetic disorders such as Down syndrome.

Chromosome 21

One of the 23 pairs of chromosomes in humans, with Down syndrome resulting from an extra copy of this chromosome.

Monosomy

Chromosome condition in which a diploid cell has one less chromosome than normal; designated as 2n − 1.

Complete Chromosome

A fully intact and functional chromosome that contains all its genetic information and structures needed for normal cellular activities and division.