Chapter PI, Problem 16RE

(a)

To determine

To find out what is the overall mean mortality rate for the two regions.

Answer to Problem 16RE

  $1524.15\text{ death per 100,000}$ .

Explanation of Solution

In the question the table of summary of mortality is given for the England and Wales whether it is from north or south and also the box plot is given. Thus, the overall mean mortality rate for the two regions can be calculated as,

  $\begin{array}{l}=\frac{34(1631.59)+27(1388.85)}{61}\\ =\frac{55474.06+37498.95}{61}\\ =\frac{92973.01}{61}\\ =1524.15\text{ death per 100,000}\end{array}$

(b)

To determine

To explain do you see evidence of a difference in mortality rates.

Answer to Problem 16RE

Yes, we see evidence of a difference in mortality rates.

Explanation of Solution

In the question the table of summary of mortality is given for the England and Wales whether it is from north or south and also the box plot is given. Thus, yes, we see evidence of a difference in mortality rates because the mean in the south is $1388.85$ and the mean in the north is $1631.59$ . The minimum mortality rate for the north is slightly above the South’s average.