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A large supermarket chain is interested in determining whether a difference exists between the mean shelf-life (in days) of brand S bread and brand H bread. Random samples of fifty freshly baked loaves of each brand were tested, the results given in the table: Brand S X1 = 4.1 $1 = 1.2 Is there sufficient evidence to conclude that a difference does exist between the two mean shelf- lives of brand S and brand H? Test at the a = 0.05 level. Brand H X2 = 5.2 S2 = 1.4

A large supermarket chain is interested in determining whether a difference exists between the mean shelf-life (in days) of brand S bread and brand H bread. Random samples of fifty freshly baked loaves of each brand were tested, the results given in the table: Brand S X1 = 4.1 $1 = 1.2 Is there sufficient evidence to conclude that a difference does exist between the two mean shelf- lives of brand S and brand H? Test at the a = 0.05 level. Brand H X2 = 5.2 S2 = 1.4

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A large supermarket chain is interested in determining whether a difference exists between the mean shelf-life (in days) of brand S bread and brand H bread. Random samples of fifty freshly baked loaves of each brand were tested, the results given in the table: Brand S X1 = 4.1 S1 = 1.2 Is there sufficient evidence to conclude that a difference does exist between the two mean shelf- lives of brand S and brand H? Test at the a = 0.05 level. Brand H X2 = 5.2 S2 = 1.4
Transcribed Image Text:A large supermarket chain is interested in determining whether a difference exists between the mean shelf-life (in days) of brand S bread and brand H bread. Random samples of fifty freshly baked loaves of each brand were tested, the results given in the table: Brand S X1 = 4.1 S1 = 1.2 Is there sufficient evidence to conclude that a difference does exist between the two mean shelf- lives of brand S and brand H? Test at the a = 0.05 level. Brand H X2 = 5.2 S2 = 1.4
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