We Have 30 Pairs Of Data With A Mean Of Differences Of 125 And Standard Deviatio 1 (1)

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We have 30 pairs of data with a mean of differences of 125 and standard deviation of 2000. Test the claim that the mean difference is zero at α = 0.01

The test statistic 0.342 is greater than the lower critical value -2.462, pvalue 0.633, do not reject H0, conclusion mean difference ≥ 0

The test statistic 0.342 is less than the upper critical value +2.462, pvalue 0.367, do not reject H0, conclusion mean difference ≤ 0

The test statistic 0.342 falls within the critical values ± 2.756, pvalue 0.735, do not reject H0, conclusion mean difference = 0

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