Hypothesis Testing: - Dept. of Statistics, Texas A&M ...

Confidence interval only tells us that there is no difference between those brands. Alternative method is the confidence interval. versus . test statistics, =1.90 < t(;n-1 = t0.01;7 =2.998 then fail to reject H0. Or versus . test statistics, =1.90 > - t(;n-1 = -t0.01;7 = -2.998 then fail to reject H0. ................
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