Consider the Following to Answer the Question(s) Below

Multiple Choice

Consider the following to answer the question(s) below:
After completing sales training for a large company, it is expected that a salesperson will generate a sale on more than 15 percent of the calls he or she makes. To make sure that the sales training process is working, a random sample of 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 76 of the calls.
-At α = 0.05

A) We can conclude that the percentage of sales after training is significantly higher than 15%.
B) We can conclude that the percentage of sales after training is significantly lower than 15%.
C) We can conclude that the percentage of sales after training is equal to 15%.
D) We can conclude that the percentage of sales after training is not significantly different from 15%.
E) We can conclude that the percentage of sales after training is not significantly higher than 15%.