Question 71223: Can someone please help me answer these questions. I received my test back and was in search of answers to these questions.
Question 1: Emperical Rule
Human body temperature have a mean of 98.20 degrees a standard deviation of 0.62 degrees.
a. Approximately what percentage of people have temperatures between 97.58 and 98.82 degrees? (Hint: Use a number line and the Emperical Rule.)
b. Approximately what percentage of people have temperatures between 96.34 and 98.2 degrees?
Question 2
Assume both data sets are population data sets. If necessary round any decimal answers to 3 decimal places.
Data set#1: 68, 77, 53, 52, 33, 70, 84, 78, 85, 77, 59, 55, 70
Data set#2: 3.7, 7.3, 3.4, 5.6 7.7, 3.2, 7.4, 7.3, 2.8, 5.4
What is the Mean, Median, Mode, Sum of squares, Variance and Standard Deviation for Data set#1 ?
What is the Mean, Median, Mode, Sum of squares, Variance, and Standard Deviation for Data Set#2 ?
b. For Data set #1 what is the z-score for 65? Is this an unusual data value?
c. For Data set#2 what is the z-score for 8.1? Is this an unusual data value?
Answer by stanbon(75887)   (Show Source):
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