(Steps Shown) Who makes a better motor ? Test at .05 significance level Company ABC: Average life= 14.50 years; standard deviation = 1.50 years; n = 10
Question: Who makes a better motor ? Test at .05 significance level
Company ABC: Average life= 14.50 years; standard deviation = 1.50 years;
n = 10
Company QQQ: Average life = 13.60 years; standard deviation = 2.10 years;
n = 11
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Hypothesis Testing (Part 2) - MathCracker.com