Mateus's bank issued an advertisement saying that 90% of its customers are satisfied with the bank's services. Since he himself wasn't very satisfied, he suspected the ad is false. He surveyed a random sample of 80 of the bank's customers, and found that only 80% were satisfied. Let's test the hypothesis that the actual percentage of satisfied customers is 90% versus the alternative that the actual percentage is lower than that. The table below sums up the results of 1000 simulations, each simulating a sample of 80 customers, assuming there are 90% satisfied customers. According to the simulations, what is the probability of getting a sample with 80% satisfied customers or less?

Mateus's bank issued an advertisement saying that 90% of its customers are satisfied with the bank's services. Since he himself wasn't very satisfied, he suspected the ad is false. He surveyed a random sample of 80 of the bank's customers, and found that only 80% were satisfied. Let's test the hypothesis that the actual percentage of satisfied customers is 90% versus the alternative that the actual percentage is lower than that. The table below sums up the results of 1000 simulations, each simulating a sample of 80 customers, assuming there are 90% satisfied customers. According to the simulations, what is the probability of getting a sample with 80% satisfied customers or less?

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Description: Mateus's bank issued an advertisement saying that 90% of its customers are satisfied with the bank'sservices. Since he himself wasn't very satisfied, he suspected the ad is false. He surveyed a random sampleof 80 of the bank's customers, and found t

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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