# What is the age distribution of promotion-sensitive shoppers? A supermarket super shopper is defined as a...

###### Question:

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 8% 41% 19% 9% 23% 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. Yes. The events are distinct and the probabilities sum to 1. Yes. The events are indistinct and the probabilities sum to less than 1. No. The events are distinct and the probabilities sum to 1. Yes. The events are distinct and the probabilities do not sum to 1. No. The events are indistinct and the probabilities sum to more than 1. Correct: Your answer is correct.

(b) Use a histogram to graph the probability distribution of part (a). A graph has a horizontal axis labeled Age and a vertical axis labeled % Super Shoppers. The histogram has 5 bars. Each bar is associated with a label and an approximate value as listed below. 23: 23 34: 9 45: 19 56: 41 67: 8 A graph has a horizontal axis labeled Age and a vertical axis labeled % Super Shoppers. The histogram has 5 bars. Each bar is associated with a label and an approximate value as listed below. 23: 23 34: 19 45: 8 56: 9 67: 41 A graph has a horizontal axis labeled Age and a vertical axis labeled % Super Shoppers. The histogram has 5 bars. Each bar is associated with a label and an approximate value as listed below. 23: 8 34: 41 45: 19 56: 9 67: 23 A graph has a horizontal axis labeled Age and a vertical axis labeled % Super Shoppers. The histogram has 5 bars. Each bar is associated with a label and an approximate value as listed below. 23: 41 34: 23 45: 8 56: 19 67:

(c) Compute the expected age μ of a super shopper. (Round your answer to two decimal places.) μ =

(d) Compute the standard deviation σ for ages of super shoppers. (Round your answer to two decimal places.) σ = yr

#### Similar Solved Questions

##### 9. The bond linking together amino acids to form peptides is called a atom of atom...
9. The bond linking together amino acids to form peptides is called a atom of atom of the amine group. bond. This involves a covalent bond linking the the carboxylate group of one amino acid to the 10. Peptides are classi fied according to the number of amino acids linked together. As such, peptides...
##### A questionnaire sampled 152 Red River College students and asked them how many text messages they...
A questionnaire sampled 152 Red River College students and asked them how many text messages they sent each day. The answers ranged from 30 to 190. You are preparing to display the data in a frequency distribution. Calculate the class width. Round to the nearest whole number. (1 mark) A/...
##### Kirby Health Care Center, Inc. has three clinics servicing the Seattle metropolitan area. The company's legal...
Kirby Health Care Center, Inc. has three clinics servicing the Seattle metropolitan area. The company's legal services department supports the clinics. Moreover its computer services department supports all of the clinics and the legal services department. The annual cost of operating the legal ...
##### A farmer wants to build a rectangular fence using the side of his barn as one side
A farmer wants to build a rectangular fence using the side of his barn as one side. He has 200 yards of fencing available. Find the maximum possible area he can enclose with the fence....
##### On a separate sheet of paper, draw the two alternative chair conformations for the product formed by the addition of bro...
On a separate sheet of paper, draw the two alternative chair conformations for the product formed by the addition of bromine to 4-tert-butylcyclohexene. The Gibbs free-energy differences between equatorial and axial substituents on a cyclohexane ring are 21 kJ/mol for tert-butyl, and 2.3 kJ/mol for ...
##### Review Topics (References Use the References to access important values if needed for this question For...
Review Topics (References Use the References to access important values if needed for this question For the following reaction, 11.5 grams of nitrogen monoxide are allowed to react with 10.3 grams of oxygen gas nitrogen monoxide(g)+oxygen(g)nitrogen dioxide(g) What is the maximum mass of nitrogen di...
##### For the permutation group of 4 elements (S4) - 1. What are its classes also find...
For the permutation group of 4 elements (S4) - 1. What are its classes also find the order of each class 2.Write down the dimensions of all the irreducible representations...
##### The following partially completed T-accounts summarize transactions for Faaberg Corporation during the year: Raw Materials Work...
The following partially completed T-accounts summarize transactions for Faaberg Corporation during the year: Raw Materials Work in Process Credit Credit Debit Beginning Balance Debit Beginning Balance 9,000 22,200 5,000 5,200 4,100 6,200 8,500 8,300 Finished Goods Manufacturing Overhead Credit Debit...
##### Estion 2 Any knowing, intentional, or negligent act by a caregiver or any other person to...
estion 2 Any knowing, intentional, or negligent act by a caregiver or any other person to an older adult is Malpractice Elder abuse Negligence Invasion of privacy...
##### Women have head circumferences that are normally distributed with a mean given by mu equals 23.41...
Women have head circumferences that are normally distributed with a mean given by mu equals 23.41 inμ=23.41 in​., and a standard deviation given by sigma equals 0.7 inσ=0.7 in. Complete parts a through c below. a. If a hat company produces​ women's hats so that they fit head...
Can you please help me to answer this question? Please provide detailed explanation on how you get to the answer. Please do not omit any steps and please explain in detail specially part b. Thank you very much in advance! Suppose you have a perfectly insulated container holding 2.00 kg of liquid wa...
##### What is the x-intercept of the line represented by the equation 5x-3y=-2?
What is the x-intercept of the line represented by the equation 5x-3y=-2?...
##### The following data is available for Milford Vinegar Co: Output level: (in units) 10,000 Bottles 15,000...
The following data is available for Milford Vinegar Co: Output level: (in units) 10,000 Bottles 15,000 20,000 Sales price per bottle: Variable production costs: Fixed production costs: Fixed selling and administrative costs: Total costs: 18.00 37,000 100,000 40,000 177,000 15.00 55,500 100,000 40,00...
##### How do you solve cos^2 x-sin^2 x=sin x over the interval -pi<x<=pi?
How do you solve cos^2 x-sin^2 x=sin x over the interval -pi...