Chapter 1.3, Problem 111E

(a)

To determine

To explain the out of the male and female doctors which have more symmetrical shape.

Answer to Problem 111E

Right skewed

Explanation of Solution

Given:

The output:

0	7	1	29	25	8	5	1	25	98	9	0	26
8	118	72	0	92	52	14	3	3	44	5	42

Graph:

The boxplot:

  

Calculations:

Descriptive statistics
count	25
mean	27.48
sample variance	1,166.34
sample standard deviation	34.15
minimum	0
maximum	118
range	118
1st quartile	3.00
median	9.00
3rd quartile	42.00
interquartile range	39.00
mode	0.00
high outliers	1

(b)

To determine

To explain the reason that makes the claim incorrect.

Answer to Problem 111E

Right skewed

Explanation of Solution

The box plot shows that the data is positively or right skewed, here the claim says that students are most prolific texters but the box plot shows that majority of student text less number of messages that makes the claim false.