MATH 1442+MATH 0099 (Choi) Jam Quiz: Chapter 3 Quiz This Question: 1 pt 10 of 15

Question

MATH 1442+MATH 0099 (Choi) Jam Quiz: Chapter 3 Quiz This Question: 1 pt 10 of 15 (9 The body temperatures of a group of healthy adults have a with body temperatures within 1 standard deviation of the mean, or betwoen 97.72"F and 98.80 F? F and 99.88 F? a. What is the a.Appromately@%ofhealthy adults nts (Type an integer or a decimal. Do not round ) 97.72"F and 98.80 F b. Approximately of healthy adults in this group have body temperaturos betweon 966F and9988F (Type an integer or a decimal. Do not round.)

Explanation / Answer

a)
68-95-99.7 rule

68 % lies within 1 sd of mean

b)
z upper = (99.88 - 98.26)/0.54 = 1.62/0.54 = 3
z lower = (96.64 - 98.26)/0.54= -3
hence
we need to know % of data which lies within 3 sd of mean
= 99.7 % by empirical rule

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