Out of a sample of 150 people who walked into a fast food restaurant, 135 said they prefer ketchup to mustard on their hamburgers. With 89% confidence, what is the confidence interval for the population mean of customers that prefer ketchup to mustard on their hamburgers?

Out of a sample of 150 people who walked into a fast food restaurant, 135 said they prefer ketchup to mustard on their hamburgers. With 89% confidence, what is the confidence interval for the population mean of customers that prefer ketchup to mustard on their hamburgers?

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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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Out of a sample of 150 people who walked into a fast food restaurant, 135 said they prefer
ketchup to mustard on their hamburgers. With 89% confidence, what is the confidence
interval for the population mean of customers that prefer ketchup to mustard on their
hamburgers?
195 20% 94 80%)

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