Homework Help is Here – Start Your Trial Now!
Math
Statistics
What is the age distribution of promotion-sensitive shoppers? A supermarket super shopper is defined as a shopper for whom at least 70% of the items purchased were on sale or purchased with a coupon. Age range, years 18-28 29-39 40-50 51-61 62 and over Midpoint x 23 34 45 56 67 Percent of super shoppers 6% 43% 19% 11% 21% A USE SALT For the 62-and-over group, use the midpoint 67 years. (a) Using the age midpoints x and the percentage of super shoppers, do we have a valid probability distribution? Explain. O Yes. The events are indistinct and the probabilities sum to less than 1. O No. The events are distinct and the probabilities sum to 1. O Yes. The events are distinct and the probabilities sum to 1. O No. The events are indistinct and the probabilities sum to more than 1. O Yes. The events are distinct and the probabilities do not sum to 1. (b) Use a histogram to graph the probability distribution of part (a). (Because the data table has summarized the data into categories, use SALT to create a bar chart.) 40 40 30 30 % Supr Shpprs 20 % Supr Shpprs % Supr Shpprs 20 % Supr Shpprs 20 10 10 10 10 23 34 45 23 34 45 56 67 Age 56 67 23 34 45 56 7 23 34 45 56 67 Age Age Age (c) Compute the expected age u of a super shopper. (Round your answer to two decimal places.) (d) Compute the standard deviation a for ages of super shoppers. (Round your answer to two decimal places.) yr

What is the age distribution of promotion-sensitive shoppers? A supermarket super shopper is defined as a shopper for whom at least 70% of the items purchased were on sale or purchased with a coupon. Age range, years 18-28 29-39 40-50 51-61 62 and over Midpoint x 23 34 45 56 67 Percent of super shoppers 6% 43% 19% 11% 21% A USE SALT For the 62-and-over group, use the midpoint 67 years. (a) Using the age midpoints x and the percentage of super shoppers, do we have a valid probability distribution? Explain. O Yes. The events are indistinct and the probabilities sum to less than 1. O No. The events are distinct and the probabilities sum to 1. O Yes. The events are distinct and the probabilities sum to 1. O No. The events are indistinct and the probabilities sum to more than 1. O Yes. The events are distinct and the probabilities do not sum to 1. (b) Use a histogram to graph the probability distribution of part (a). (Because the data table has summarized the data into categories, use SALT to create a bar chart.) 40 40 30 30 % Supr Shpprs 20 % Supr Shpprs % Supr Shpprs 20 % Supr Shpprs 20 10 10 10 10 23 34 45 23 34 45 56 67 Age 56 67 23 34 45 56 7 23 34 45 56 67 Age Age Age (c) Compute the expected age u of a super shopper. (Round your answer to two decimal places.) (d) Compute the standard deviation a for ages of super shoppers. (Round your answer to two decimal places.) yr

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Topic Video
Question

please help with this i attached a screen shot

 

What is the age distribution of promotion-sensitive shoppers? A supermarket super shopper is defined as a shopper for whom at least 70% of the items purchased were on sale or purchased with a coupon. Age range, years 18-28 29-39 40-50 51-61 62 and over Midpoint x 23 34 45 56 67 Percent of super shoppers 6% 43% 19% 11% 21% In USE SALT For the 62-and-over group, use the midpoint 67 years. (a) Using the age midpoints x and the percentage of super shoppers, do we have a valid probability distribution? Explain. O Yes. The events are indistinct and the probabilities sum to less than 1. O No. The events are distinct and the probabilities sum to 1. O Yes. The events are distinct and the probabilities sum to 1. O No. The events are indistinct and the probabilities sum to more than 1. Yes. The events are distinct and the probabilities do not sum to 1. (b) Use a histogram to graph the probability distribution of part (a). (Because the data table has summarized the data into categories, use SALT to create a bar chart.) 40 40 40 40 30 30- 30 30 % Supr Shpprs 20 % Supr Shpprs 20 % Supr Shpprs 20 % Supr Shpprs 20 10 10- 10 10 23 34 45 56 67 23 34 45 56 67 23 34 45 56 67 23 34 45 56 67 Age Age Age Age (c) Compute the expected age u of a super shopper. (Round your answer to two decimal places.) |yr (d) Compute the standard deviation o for ages of super shoppers. (Round your answer to two decimal places.) O = yr
Transcribed Image Text:What is the age distribution of promotion-sensitive shoppers? A supermarket super shopper is defined as a shopper for whom at least 70% of the items purchased were on sale or purchased with a coupon. Age range, years 18-28 29-39 40-50 51-61 62 and over Midpoint x 23 34 45 56 67 Percent of super shoppers 6% 43% 19% 11% 21% In USE SALT For the 62-and-over group, use the midpoint 67 years. (a) Using the age midpoints x and the percentage of super shoppers, do we have a valid probability distribution? Explain. O Yes. The events are indistinct and the probabilities sum to less than 1. O No. The events are distinct and the probabilities sum to 1. O Yes. The events are distinct and the probabilities sum to 1. O No. The events are indistinct and the probabilities sum to more than 1. Yes. The events are distinct and the probabilities do not sum to 1. (b) Use a histogram to graph the probability distribution of part (a). (Because the data table has summarized the data into categories, use SALT to create a bar chart.) 40 40 40 40 30 30- 30 30 % Supr Shpprs 20 % Supr Shpprs 20 % Supr Shpprs 20 % Supr Shpprs 20 10 10- 10 10 23 34 45 56 67 23 34 45 56 67 23 34 45 56 67 23 34 45 56 67 Age Age Age Age (c) Compute the expected age u of a super shopper. (Round your answer to two decimal places.) |yr (d) Compute the standard deviation o for ages of super shoppers. (Round your answer to two decimal places.) O = yr
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Research Design Formulation
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS