Andy is a restaurant owner. He believes 70% of his customers are satisfied with the food quality of his restaurant. From a random sample of 90 customers, what are the following probabilities? (Round your answers to four decimal places, if needed.) (a) What is the probability that less than 64 customers are satisfied with the food quality? (b) What is the probability that at least 64 customers are satisfied with the food quality? (c) What is the probability that the sample proportion of customers who are satisfied with the food quality is between 68% and 75%?

Andy is a restaurant owner. He believes 70% of his customers are satisfied with the food quality of his restaurant. From a random sample of 90 customers, what are the following probabilities? (Round your answers to four decimal places, if needed.) (a) What is the probability that less than 64 customers are satisfied with the food quality? (b) What is the probability that at least 64 customers are satisfied with the food quality? (c) What is the probability that the sample proportion of customers who are satisfied with the food quality is between 68% and 75%?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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