An experiment was conducted to compare the strength of shirts for two different brands. A random sample of twelve shirts of brand A and a random sample of ten shirts of brand B were tested. Brand A gave average strength of 85kg with a sample standard deviation of 4, while brand B gave an average of 81kg and standard deviation of 5. Can we conclude at the 0.05 level of significance that the strength of brand A exceeds that of brand B by more than 2kg? Assume the nonulation to be annroximately normal with equal variances

An experiment was conducted to compare the strength of shirts for two different brands. A random sample of twelve shirts of brand A and a random sample of ten shirts of brand B were tested. Brand A gave average strength of 85kg with a sample standard deviation of 4, while brand B gave an average of 81kg and standard deviation of 5. Can we conclude at the 0.05 level of significance that the strength of brand A exceeds that of brand B by more than 2kg? Assume the nonulation to be annroximately normal with equal variances

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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Transcribed Image Text:An experiment was conducted to compare the strength of shirts for two different brands. A random sample of twelve shirts of brand A and a random sample of ten shirts of brand B were tested. Brand A gave average strength of 85kg with a sample standard deviation of 4, while brand B gave an average of 81kg and standard deviation of 5. Can we conclude at the 0.05 level of significance that the strength of brand A exceeds that of brand B by more than 2kg? Assume the population to be approximately normal with equal variances.

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