Asked by Danielle
You are given a sample of 106 body temperatures having a mean of 98.2 F and a standard deviation of 0.62 F. You are asked to test the hypothesis that the population mean body temperature is 98.6 F using a 0.05 significance level. What value should you use for the test statistic?
The answer is -6.64 but I'm confused as to how it was found. Please help. I'm studying for a final.
The answer is -6.64 but I'm confused as to how it was found. Please help. I'm studying for a final.
Answers
Answered by
PsyDAG
This is what I would do.
Z = (score-mean)/SEm
SEm = SD/√n
P ≤ .05
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. How does it compare?
Z = (score-mean)/SEm
SEm = SD/√n
P ≤ .05
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. How does it compare?
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