Use the following data set to answer the questions. Do this one manually.
a. Compute the correlation between age in months and number of words known.
b. Test for the significance of the correlation at the .05 level of significance.
c. Recall what you learned in Ch. 5 of Salkind (2011) about correlation coefficients and interpret this correlation.
|
Age in months
|
Number of words known
|
|
12
|
6
|
|
15
|
8
|
|
9
|
4
|
|
7
|
5
|
|
18
|
14
|
|
24
|
18
|
|
15
|
7
|
|
16
|
6
|
|
21
|
12
|
|
15
|
17
|