local five-star restaurant asks its patrons to fill out a quick satisfaction survey (is the patron satisfied or not) after their meal, and the restaurant claims that their satisfaction rating is 85%. Jennie, a food critic, would like to test this. She takes a sample of 192 patrons, and gets a 77.7% sample satisfaction rating. (a) Create an 80% confidence interval for the restaurant's true satisfaction rating. (Provide answers in decimal form, not percentage. Thus, 77.7% becomes 0.777. Round your answers to four decimal places, if needed.)

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter9: Sequences, Probability And Counting Theory
Section9.7: Probability
Problem 1SE: What term is used to express the likelihood of an event occurring? Are there restrictions on its...
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A local five-star restaurant asks its patrons to fill out a quick satisfaction survey (is the patron satisfied or not) after their meal, and the restaurant claims that their satisfaction rating is 85%. Jennie, a food critic, would like to test this. She takes a sample of 192 patrons, and gets a 77.7% sample satisfaction rating.

(a) Create an 80% confidence interval for the restaurant's true satisfaction rating. (Provide answers in decimal form, not percentage. Thus, 77.7% becomes 0.777. Round your answers to four decimal places, if needed.)

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