
Jon S. answered 03/13/21
Patient and Knowledgeable Math and English Tutor
t = (xbar - mu)/(SD/sqrt(sample size)
t = (48.3 - 47.445)/(1.91/sqrt(23)) = 2.1468
rounded to 2 decimal places that would be 2.15.
Natalie C.
asked 03/13/21H0:μ=47.445H1:μ>47.445Your sample consists of 23 subjects, with a mean of 48.3 and standard deviation of 1.91.Calculate the test statistic, rounded to 2 decimal places.
Jon S. answered 03/13/21
Patient and Knowledgeable Math and English Tutor
t = (xbar - mu)/(SD/sqrt(sample size)
t = (48.3 - 47.445)/(1.91/sqrt(23)) = 2.1468
rounded to 2 decimal places that would be 2.15.
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Natalie C.
ohhh. ok thank you!03/13/21