dea set incluakes 103 bodly temperatures of heathy adit humans for which i 989F

Question

dea set incluakes 103 bodly temperatures of heathy adit humans for which i 989F ands 0 65 F. Complete parts () and (t) below he standard normal distrbution able The best point estimate is b. Uing the sample statistics, constract a 90P% contidence interval estimate of the mean body bemperature of ail healthy humans Do the confidence interval limits contain 98 6 F? What does the sample supgest about the use of 8 5°F as the mean body temperature Round to theee decimal places as needed Do the corlidence eberval Smits contan 98 6F

Explanation / Answer

a)

best point estimate =mean =x bar =98.9

b)

x=98.9

=0.65

n=100

For 99% confidence,Z/2 =2.576

CI = x ± Z/2 × (/n)

   =98.9 ± 2.576 x(0.65/100)

   =98.9 ± 2.576*0.065

   =98.9 ± 0.16744

   = 98.9 -.16744 to 98.9 +0.16744

   =98.733 < < 99.067

c) No,it doesnt contain 98.6

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