Question

PHSTAT ONLY!!!!

Health care issues are receiving much attention in both academic and political arenas. A sociologist recently conducted a survey of citizens over 60 years of age whose net worth is too high to qualify for Medicaid. The ages of 25 senior citizens were as follows:

60	65	71	76	86
61	66	73	77	87
62	68	73	81	89
63	68	74	81	90
64	69	75	82	95

1. Calculate the arithmetic mean age of the senior citizens. (Note: Use two decimal places, i.e. 12.34)
2. Determine the median of the senior ages.
3. Determine the first quartile of the ages of the senior citizens.
4. Determine the third quartile of the ages of the senior citizens.
5. Determine the interquartile range of the ages of the senior citizens.
6. Compute the skewness.
7. Compute the Kurtosis.
8. Calculate the variance. (Note: Use two decimal places, i.e. 12.34)
9. Calculate standard deviation. (Note: Use two decimal places, i.e. 12.34%)
10. Calculate the coefficient of variation.

Answer 1

Using excel<data<data analysis<descriptive statistics

Descriptive statistics
	# 1
count	25
mean	74.24
sample standard deviation	9.98
sample variance	99.69
minimum	60
maximum	95
range	35
skewness	0.43
kurtosis	-0.80
coefficient of variation (CV)	13.45%
1st quartile	66.00
median	73.00
3rd quartile	81.00
interquartile range	15.00
mode	68.00

Answers:

Mean Age	74.24
Median	73.00
First Quartile	66
Third Quartile	81
Interquartile Range	15
Skewness	0.425028
Kutosis	-0.800485
Variance	99.69
Standard Deviation	9.98
Coefficient Of variation	13.45%