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A researcher wishes to test the mean body temperature against the accepted value of 98.6. If...

A researcher wishes to test the mean body temperature against the accepted value of 98.6. If a sample of 26 subjects had an average temperature of 98.4 with a standard deviation of 0.6, what conclusion should be reached? Use a significant level of 0.10

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Answer #1

H0: = 98.6

Ha: 98.6

Test statistics

t = - / S / sqrt(n )

= 98.4 - 98.6 / 0.6 / sqrt(26)

= -1.70

Critical values at 0.10 level with 25 df = -1.708 , 1.708

Since test statistics falls in non-rejection region, do not reject H0.

We conclude at 0.10 level that we fail to support the claim.

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