Question

Are name brand groceries more expensive than store brand groceries? The following table shows the prices of 6 commonly purchased items.

Item	Paper Towels	Shampoo	Cereal	Ice Cream	Peanut Butter	Milk
Name Brand	$1.29	$4.69	$3.59	$3.49	$2.79	$2.99
Store Brand	$1.29	$3.99	$3.39	$2.69	$2.39	$3.49
Difference	0	.70	.20	.80	.40	-.50

1. What is the Null Hypothesis?

2. Using the Dependent Samples t-test, what is the p-value rounded to 3 decimal places?

3. Would you reject the null hypothesis at α=.10?

Answer 1

& Wull hypothesis is the lo so. 2 n = 6, J = 0.2667, Sd = 0.4803. Test statistie & t= h = 0. 2667 Salvh 0.4803156 I 1-360 pualue = 0.1160 ~ 10.116) 3 x = 0.10 - p-value x = Do not reject the null hypotheses