Chapter 8.2, Problem 60E

Solution

a.

To construct: A dot plot using the provided data set.

Given:

The data set is:

3
4
6
6
9
11
11
12
13
13
14
14
16
17
22
23
23
24
28
30

Graph:

The dot-plot is:

  

b.

To explain: Whether using the above dot plot it could be said that the number of seeds on the tree follows the normal distribution.

From the dot plot constructed in above part, it could be seen that the data points are not falling in the center. The data points are lying in the right tailed of the plot. Thus, it cannot be said that the number of seeds on the tree follows the normal distribution.