Question

1) Twenty consumers tested both products X and Y. Their preferences are listed below. Test the following H₀: Consumers prefer brand Y. Use the sign test.

Consumer J	Brand Preference	Consumer J	Brand Preference
1	Y	11	Y
2	Y	12	Y
3	X	13	Y
4	Y	14	Y
5	Y	15	X
6	Y	16	X
7	X	17	Y
8	Y	18	Y
9	X	19	Y
10	Y	20	Y

Calculated test statistic:

Critical value of the test statistic:

Decision rule:

Decision:

Answer 1

If you are satisfied please give a thumb up.