It is commonly believed that the mean body temperature of a
healthy adult is 98.6∘F98.6∘F. You are not entirely convinced. You
believe that it is not 98.6∘F98.6∘F. You collected data using 54
healthy people and found that they had a mean body temperature of
98.22∘F98.22∘F with a standard deviation of 1.17∘F1.17∘F. Use a
0.05 significance level to test the claim that the mean body
temperature of a healthy adult is not 98.6∘F98.6∘F.
a) Identify the null and alternative
hypotheses?
H0H0: (p =, p ≠, p <, p >, p ≤, p ≥, μ =, μ ≠, μ
<, μ >, μ ≤, μ ≥)
H1H1: (p =, p ≠, p <, p >, p ≤, p ≥, μ =, μ ≠, μ <, μ
>, μ ≤, μ ≥)
b) What type of hypothesis test should you conduct
(left-, right-, or two-tailed)?
c) Identify the appropriate significance
level.
d) Calculate your test statistic. Write the result
below, and be sure to round your final answer to two decimal
places.
e) Calculate your p-value. Write the result below,
and be sure to round your final answer to four decimal
places.
f) Do you reject the null hypothesis?
g) Select the statement below that best represents
the conclusion that can be made.
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