Answer to Question #347192 in Statistics and Probability for Carol

Question

Directions: From the given situation, (a) state the null and alternative hypotheses, (b) compute the test statistic, (c) determine the critical value and sketch the rejection region and non-rejection region in the normal curve.

1. The cahier of a fast-food restaurant claims that the average amount spent by customers for dinner is Php 120.00. A sample of 50 customers over a month was randomly selected and it was found out that the average amount spent for dinner was Php 122.50. Construct the critical regions using a 0.05 level of significance to conclude that the average amount spent by customers is more than Php 120.00. Assume that the population standard deviation is Php6.50.

Answer 1

It's been a while since this question is posted here. Still, the answer hasn't been got. Consider converting this question to a fully qualified assignment, and we will try to assist. Please click the link below to proceed: Submit order