What is the age distribution of promotion-sensitive shoppers?
What is the age distribution of promotion-sensitive shoppers? A supermarket super shopper is defined as a shopper for whom at least 709% of the items purchased were on sale or purchased with a coupon.
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.
No. The events are distinct and the probabilities sum to 1.
Yes. 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.
Yes. The events are indistinct and the probabilities sum to less than 1.
(b) Use a histogram to graph the probability distribution of part (a).
(c) Compute the expected age u of a super shopper. (Round your answer to two decimal places.).
(d) Compute the standard deviation o for ages of super shoppers. (Round your answer to two decimal places.)
Homework Answers
What is the age distribution of promotion-sensitive shoppers? A supermarket super shopper is defined as a...
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 9% 40% 26% 12% 13% For the 62-and-over group, use the midpoint 67 years. (a) Using the age midpoints x and the percentage of super...
What is the age distribution of promotion-sensitive shoppers? A supermarket super shopper is defined as a...
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...
What is the income distribution of super shoppers? A supermarket super shopper is defined as a shopper for whom at least...
What is the income distribution of super 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. In the
following table, income units are in thousands of dollars, and each
interval goes up to but does not include the given high value. The
midpoints are given to the nearest thousand dollars. Income range
5-15, 15-25, 25-35, 35-45, 45-55, 55 or more. Midpoint x...
What is the income distribution of super shoppers? A supermarket super shopper is defined as a shopper for whom at leas...
What is the income distribution of super 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. In the
following table, income units are in thousands of dollars, and each
interval goes up to but does not include the given high value. The
midpoints are given to the nearest thousand dollars. Income range
5-15 15-25 25-35 35-45 45-55 55 or more Midpoint x...
4. 6.55/12.5 points Previous Answers BBUnderStat 12 5.1.011. 2/10 Submissions Used My Notes Ask Your Teacher...
4. 6.55/12.5 points Previous Answers BBUnderStat 12 5.1.011. 2/10 Submissions Used My Notes Ask Your Teacher What is the income distribution of super 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. In the following table, income units are in thousands of dollars, and each interval goes up to but does not include the given high value. The midpoints are given to...
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What was the age distribution of nurses in Great Britain at the time of Florence Nightingale?...
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What was the age distribution of nurses in Great Britain at the time of Florence Nightingale?...
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Problem What is normal? What makes normal curves different? If you flip 10 coins 1,024 times,...
Problem What is normal? What makes normal curves different? If you flip 10 coins 1,024 times, what is the total number of times you will get heads? Let's first focus on the theoretical probabilities. The table below shc the expected values and theoretical probabilities obtained. Expected frequency value out of 1,024 Theoretical Number of heads Percent likelihood probability 1 0 1 1024 10 1 10 1024 45 2 45 1024 120 3 120 1024 210 4 210 1024 252 5...
What is the income distribution of super 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. In the
following table, income units are in thousands of dollars, and each
interval goes up to but does not include the given high value. The
midpoints are given to the nearest thousand dollars. Income range
5-15, 15-25, 25-35, 35-45, 45-55, 55 or more. Midpoint x...
What is the income distribution of super 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. In the
following table, income units are in thousands of dollars, and each
interval goes up to but does not include the given high value. The
midpoints are given to the nearest thousand dollars. Income range
5-15 15-25 25-35 35-45 45-55 55 or more Midpoint x...
4. 6.55/12.5 points Previous Answers BBUnderStat 12 5.1.011. 2/10 Submissions Used My Notes Ask Your Teacher What is the income distribution of super 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. In the following table, income units are in thousands of dollars, and each interval goes up to but does not include the given high value. The midpoints are given to...
2. What was the age distribution of nurses in Great Britain at the time of Florence Nightingaler We have the following data from Florence Nightingale's writing Age Range (yr) 20-29 30-39 40-49 50-59 60-69 70-79 80+ Midpoint x | 24.5 34.5 44.5 54.5 64.5 / 74.5 84.5 Percantage of Nurses 5.7% 9.7% 19.5% 29.2% 25.0% 9.1% 1.8% A. Using the age midpoints x and the percentage of nurses, do we have a valid probability distribution? Explain B. Use a histogram...
What is the age distribution of patients who make office visits to a doctor or nurse? The following table is based on information taken from a medical journal. | Age group, years Under 15 15-24 25-44 45-64 65 and older | Percent of office visitors 10% 5% 15% 10% 60% Suppose you are a district manager of a health management organization (HMO) that is monitoring the office of a local doctor or nurse in general family practice. This morning the...
Problem What is normal? What makes normal curves different? If you flip 10 coins 1,024 times, what is the total number of times you will get heads? Let's first focus on the theoretical probabilities. The table below shc the expected values and theoretical probabilities obtained. Expected frequency value out of 1,024 Theoretical Number of heads Percent likelihood probability 1 0 1 1024 10 1 10 1024 45 2 45 1024 120 3 120 1024 210 4 210 1024 252 5...
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