A grocery store has an average sales of $8000 per day. The store introduced several advertising campaigns in order to increase sales. To determine whether or not the advertising campaigns have been effective in increasing sales, a sample of 100 days of sales was selected. It was found that the average was $8200 per day. From past information, it is known that the standard deviation of the population is $1500. The value of the test statistic is a. .133. b. 1.33. c. .013. d. 13.33.
A grocery store has an average sales of $8000 per day. The store introduced several advertising campaigns in order to increase sales. To determine whether or not the advertising campaigns have been effective in increasing sales, a sample of 100 days of sales was selected. It was found that the average was $8200 per day. From past information, it is known that the standard deviation of the population is $1500. The value of the test statistic is a. .133. b. 1.33. c. .013. d. 13.33.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Question
A grocery store has an average sales of $8000 per day. The store introduced several advertising campaigns in order to increase sales. To determine whether or not the advertising campaigns have been effective in increasing sales, a sample of 100 days of sales was selected. It was found that the average was $8200 per day. From past information, it is known that the standard deviation of the population is $1500. The value of the test statistic is
a. |
.133.
|
|
b. |
1.33.
|
|
c. |
.013.
|
|
d. |
13.33.
|
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