Cub Foods - Inferential Statistics, Question 1

Bertha Weaver, James Wooley, Mary Songer, Bill Jones
Math 113 - 01: Spring 2000

Does the mean price of Cub Foods differ significantly from the mean of all the stores?

Descriptives for ALL stores, all Products

Descriptive Statistics

N Mean
Regular Price 185 2.2924
Price Paid 185 2.1831
Valid N (listwise) 185

Descriptives for ALL stores by Product

Descriptive Statistics
Product Category N Mean
Dairy Products Regular Price 15 3.4313
Price Paid 15 3.3240
Valid N (listwise) 15
Beverages Regular Price 30 2.8930
Price Paid 30 2.6517
Valid N (listwise) 30
Breakfast Cereals Regular Price 40 3.1108
Price Paid 40 2.9503
Valid N (listwise) 40
Snacks and Sweets Regular Price 25 2.1840
Price Paid 25 2.0380
Valid N (listwise) 25
Fruits and Fruit Juices Regular Price 25 1.7652
Price Paid 25 1.8596
Valid N (listwise) 25
Lunch Meat Regular Price 20 1.0730
Price Paid 20 1.0295
Valid N (listwise) 20
Soups and Sauces Regular Price 20 .8820
Price Paid 20 .8820
Valid N (listwise) 20
Meats Regular Price 10 2.3570
Price Paid 10 2.0780
Valid N (listwise) 10

Descriptives for CUB FOODS, all products

Descriptive Statistics

N Mean Std. Deviation
Regular Price 37 2.2759 1.4443
Price Paid 37 2.0630 1.3446
Valid N (listwise) 37


Descriptives for CUB FOODS by Product

Descriptive Statistics
Product Category N Mean Std. Deviation
Dairy Products Regular Price 3 3.6100 1.0923
Price Paid 3 3.5067 1.2163
Valid N (listwise) 3

Beverages Regular Price 6 3.1333 2.4901
Price Paid 6 2.4433 2.4398
Valid N (listwise) 6

Breakfast Cereals Regular Price 8 2.9138 .4557
Price Paid 8 2.5338 .4613
Valid N (listwise) 8

Snacks and Sweets Regular Price 5 2.2520 1.0946
Price Paid 5 2.1740 1.0962
Valid N (listwise) 5

Fruits and Fruit Juices Regular Price 5 1.7240 .9895
Price Paid 5 1.7240 .9895
Valid N (listwise) 5

Lunch Meat Regular Price 4 1.0400 .3000
Price Paid 4 1.0400 .3000
Valid N (listwise) 4

Soups and Sauces Regular Price 4 .7625 .1972
Price Paid 4 .7625 .1972
Valid N (listwise) 4

Meats Regular Price 2 2.0900 1.1314
Price Paid 2 2.0900 1.1314
Valid N (listwise) 2


Note: This is not the complete information, but must be accompanied by another set
of output with the results from Statdisk.