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You are evaluating the effectiveness of improvements your company has made to a new mobile...

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You are evaluating the effectiveness of improvements your company has made to a new mobile app The 95 confidence interval for the difference between the proportion of users who prefer the old version and the proportion who prefer the new version is 0 043 0 094 At the 0 05 level of significance should you reject the null hypothesis that there is no difference between the proportions A no because the value zero is firmly within the confidence interval B no because we do not know the P value C yes because the margin of error is very small D no because the margin of error is very small

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