A survey of 225 gas stations in the New Haven area revealed the following data of the price per gallon of regular gasoline. Mean= $2.82, s= .12. Construct a confidence interval using:(round to nearest "tenth" of a cent i.e. $3.015): a) .85 level of confidence. b) .96 level of confidence. c) .99 level of confidence, but decrease the "n" to 25.
A survey of 225 gas stations in the New Haven area revealed the following data of the price per gallon of regular gasoline. Mean= $2.82, s= .12. Construct a confidence interval using:(round to nearest "tenth" of a cent i.e. $3.015): a) .85 level of confidence. b) .96 level of confidence. c) .99 level of confidence, but decrease the "n" to 25.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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