Question

A market research firm used a sample of individuals to rate the purchase potential of a particular product before
and after the individuals saw a new television commercial about the product. The purchase potential ratings were
based on a 0 to 10 scale, with higher values indicating a higher purchase potential. Test whether the commercial
improved the mean purchase potential rating. at the .10 level of significance.
Individual	After	Before
Carl Hall	6	5
Malcom Armstead	6	4
Ron Baker	8	7
Landry Shamet	4	3
Evan Wessel	3	4
Fred Van Vleet	9	8
Tekele Cotton	7	6
Cleanthony Early	5	6
State the pvalue.
State whether you rejected or did not reject H0.
At the ten percent level of significance, the commercials (are / are not) effective in improving the mean purchase
potential rating. Choose one.

Answer 1

from above: p value =0.0698

since p value <0.10 ; we reject Ho

At the ten percent level of significance, the commercials (are ) effective in improving the mean purchase