A Consumer Reports survey found that 205 people out of 325 surveyed prefer to purchase books online. Use the steps below to construct a 99% confidence interval to estimate the proportion of all people that prefer to purchase books online. a) What is the sample proportion of people that prefer to purchase books online? b) Find the critical value � that corresponds to a 99% confidence level. c) Calculate “E” d) Construct your confidence interval. e) Write a sentence that explains the meaning of the confidence interval.
A Consumer Reports survey found that 205 people out of 325 surveyed prefer to purchase books online. Use the steps below to construct a 99% confidence interval to estimate the proportion of all people that prefer to purchase books online. a) What is the sample proportion of people that prefer to purchase books online? b) Find the critical value � that corresponds to a 99% confidence level. c) Calculate “E” d) Construct your confidence interval. e) Write a sentence that explains the meaning of the confidence interval.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 13PPS
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A Consumer Reports survey found that 205 people out of 325 surveyed prefer to
purchase books online. Use the steps below to construct a 99% confidence
estimate
a) What is the sample proportion of people that prefer to purchase books online?
b) Find the critical value �
that corresponds to a 99% confidence level.
c) Calculate “E”
d) Construct your confidence interval.
e) Write a sentence that explains the meaning of the confidence interval.
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