You are a sales manager for a grocery store, and you want to see if the introduction of a new sales promotion will increase the sales in your store. To do so, you decided to create an experiment by giving a small sample of customers the promotion before expanding it to a larger customer base. You gave 24 people the promotion, and also observed the sales of 24 people who did not get the promotion as a control group. You found those who received the promotion to have an average monthly sales of $469.86, with a sample standard deviation of $47.15. You found those who did not receive the promotion had an average monthly sales of $391.67, with a sample standard deviation of $75.46. Suppose you want to create a confidence interval for Hpromotion no promotion What is the standard error of the difference . between sample averages in your analysis? Note: 1- Only round your final answer. Round your final answer to two decimal places. Your Answer:
You are a sales manager for a grocery store, and you want to see if the introduction of a new sales promotion will increase the sales in your store. To do so, you decided to create an experiment by giving a small sample of customers the promotion before expanding it to a larger customer base. You gave 24 people the promotion, and also observed the sales of 24 people who did not get the promotion as a control group. You found those who received the promotion to have an average monthly sales of $469.86, with a sample standard deviation of $47.15. You found those who did not receive the promotion had an average monthly sales of $391.67, with a sample standard deviation of $75.46. Suppose you want to create a confidence interval for Hpromotion no promotion What is the standard error of the difference . between sample averages in your analysis? Note: 1- Only round your final answer. Round your final answer to two decimal places. Your Answer:
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 27PPS
Related questions
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 1 images
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning