Question

BMI Before	BMI After
29	24
25	26
24	23
35	27
22	25
28	27
26	24
27	25
26	24
23	22
21	23
21	25
24	23
25	25
24	26
32	30
26	22
30	28
25	27
25	30

You need to create two histograms: one for the pre-BMI intervention and another for the post-BMI intervention.

Please provide your interpretation of the results. For example, you might want to compare

the two histograms and point out the similarties and differences. You may want to share some

relevant descriptive statistics about the two groups of data.

Answer 1

The histograms are:

	BMI Before	BMI After
count	20	20
mean	25.90	25.30
sample standard deviation	3.54	2.34
sample variance	12.52	5.48
minimum	21	22
maximum	35	30
range	14	8
skewness	0.99	0.58
kurtosis	1.13	-0.21
coefficient of variation (CV)	13.66%	9.26%

Both histograms are skewed to the right. The coefficient of variation is more for histogram 1. The mean is almost the same for both variables. The minimum values are also the same for both variables.