Explain about the “What” data the cards allow stores to gather. Also explain “Why” the data would be wanted.

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Answer 1

Question

Chapter 1, Problem 1E

To determine

Explain about the “What” data the cards allow stores to gather.

Also explain “Why” the data would be wanted.

Expert Solution & Answer

Answer to Problem 1E

The “What” in the data gathered by the store includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The “Why” behind the collection of the data is to use the data to improve the business strategies of the store according to the time, place, and locality.

Explanation of Solution

Given info:

Several grocery store chains offer their customers a card to scan during check-out; they are issued once the customers provide some information about themselves, such as mailing address and e-mail address. The customers who accept the card are given discounts, while the data about the customers is gathered by the store.

Justification:

The grocery store chains typically have several stores scattered over the whole country. Once a customer is issued a card, by taking their mailing address and e-mail address, the customer becomes a unique identity. Whenever the card is scanned after purchase, the store automatically gets the whole data regarding the purchase of the customer.

Thus, an answer to “What” data that is collected includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The stores aim at increasing their business profits. The complete information about each individual’s purchase helps the store to create a customer profile. The store management can decide customers of which age-group and gender buy which type of article. Determining which articles are frequently bought together helps the store management to arrange their goods in such a way that the goods attract the most attention; it also helps to decide which items to put on discount. This data helps the store management to decide on their advertisement policies, as well.

All this information is gathered to address the question “Why”behind the collection of the data; that is, to use the data to improve the business strategies of the store according to the time, place, and locality.

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(a) Test the hypothesis. Consider the hypothesis test Ho = : against H₁o < 02. Suppose that the sample sizes aren₁ = 7 and n₂ = 13 and that $² = 22.4 and $22 = 28.2. Use α = 0.05. Ho is not ✓ rejected. 9-9 IV (b) Find a 95% confidence interval on of 102. Round your answer to two decimal places (e.g. 98.76).

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= Consider the hypothesis test Ho: μ₁ = μ₂ against H₁ μ₁ μ2. Suppose that sample sizes are n₁ = 15 and n₂ = 15, that x1 = 4.7 and X2 = 7.8 and that s² = 4 and s² = 6.26. Assume that o and that the data are drawn from normal distributions. Use απ 0.05. (a) Test the hypothesis and find the P-value. (b) What is the power of the test in part (a) for a true difference in means of 3? (c) Assuming equal sample sizes, what sample size should be used to obtain ẞ = 0.05 if the true difference in means is - 2? Assume that α = 0.05. (a) The null hypothesis is 98.7654). rejected. The P-value is 0.0008 (b) The power is 0.94 . Round your answer to four decimal places (e.g. Round your answer to two decimal places (e.g. 98.76). (c) n₁ = n2 = 1 . Round your answer to the nearest integer.

Answer 2

Question

Chapter 1, Problem 1E

To determine

Explain about the “What” data the cards allow stores to gather.

Also explain “Why” the data would be wanted.

Expert Solution & Answer

Answer to Problem 1E

The “What” in the data gathered by the store includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The “Why” behind the collection of the data is to use the data to improve the business strategies of the store according to the time, place, and locality.

Explanation of Solution

Given info:

Several grocery store chains offer their customers a card to scan during check-out; they are issued once the customers provide some information about themselves, such as mailing address and e-mail address. The customers who accept the card are given discounts, while the data about the customers is gathered by the store.

Justification:

The grocery store chains typically have several stores scattered over the whole country. Once a customer is issued a card, by taking their mailing address and e-mail address, the customer becomes a unique identity. Whenever the card is scanned after purchase, the store automatically gets the whole data regarding the purchase of the customer.

Thus, an answer to “What” data that is collected includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The stores aim at increasing their business profits. The complete information about each individual’s purchase helps the store to create a customer profile. The store management can decide customers of which age-group and gender buy which type of article. Determining which articles are frequently bought together helps the store management to arrange their goods in such a way that the goods attract the most attention; it also helps to decide which items to put on discount. This data helps the store management to decide on their advertisement policies, as well.

All this information is gathered to address the question “Why”behind the collection of the data; that is, to use the data to improve the business strategies of the store according to the time, place, and locality.

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Answer 3

Question

Chapter 1, Problem 1E

To determine

Explain about the “What” data the cards allow stores to gather.

Also explain “Why” the data would be wanted.

Expert Solution & Answer

Answer to Problem 1E

The “What” in the data gathered by the store includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The “Why” behind the collection of the data is to use the data to improve the business strategies of the store according to the time, place, and locality.

Explanation of Solution

Given info:

Several grocery store chains offer their customers a card to scan during check-out; they are issued once the customers provide some information about themselves, such as mailing address and e-mail address. The customers who accept the card are given discounts, while the data about the customers is gathered by the store.

Justification:

The grocery store chains typically have several stores scattered over the whole country. Once a customer is issued a card, by taking their mailing address and e-mail address, the customer becomes a unique identity. Whenever the card is scanned after purchase, the store automatically gets the whole data regarding the purchase of the customer.

Thus, an answer to “What” data that is collected includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The stores aim at increasing their business profits. The complete information about each individual’s purchase helps the store to create a customer profile. The store management can decide customers of which age-group and gender buy which type of article. Determining which articles are frequently bought together helps the store management to arrange their goods in such a way that the goods attract the most attention; it also helps to decide which items to put on discount. This data helps the store management to decide on their advertisement policies, as well.

All this information is gathered to address the question “Why”behind the collection of the data; that is, to use the data to improve the business strategies of the store according to the time, place, and locality.

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Answer 4

Question

Chapter 1, Problem 1E

To determine

Explain about the “What” data the cards allow stores to gather.

Also explain “Why” the data would be wanted.

Expert Solution & Answer

Answer to Problem 1E

The “What” in the data gathered by the store includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The “Why” behind the collection of the data is to use the data to improve the business strategies of the store according to the time, place, and locality.

Explanation of Solution

Given info:

Several grocery store chains offer their customers a card to scan during check-out; they are issued once the customers provide some information about themselves, such as mailing address and e-mail address. The customers who accept the card are given discounts, while the data about the customers is gathered by the store.

Justification:

The grocery store chains typically have several stores scattered over the whole country. Once a customer is issued a card, by taking their mailing address and e-mail address, the customer becomes a unique identity. Whenever the card is scanned after purchase, the store automatically gets the whole data regarding the purchase of the customer.

Thus, an answer to “What” data that is collected includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The stores aim at increasing their business profits. The complete information about each individual’s purchase helps the store to create a customer profile. The store management can decide customers of which age-group and gender buy which type of article. Determining which articles are frequently bought together helps the store management to arrange their goods in such a way that the goods attract the most attention; it also helps to decide which items to put on discount. This data helps the store management to decide on their advertisement policies, as well.

All this information is gathered to address the question “Why”behind the collection of the data; that is, to use the data to improve the business strategies of the store according to the time, place, and locality.

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Answer 5

Chapter 1, Problem 1E

To determine

Explain about the “What” data the cards allow stores to gather.

Also explain “Why” the data would be wanted.

Expert Solution & Answer

Answer to Problem 1E

The “What” in the data gathered by the store includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The “Why” behind the collection of the data is to use the data to improve the business strategies of the store according to the time, place, and locality.

Explanation of Solution

Given info:

Several grocery store chains offer their customers a card to scan during check-out; they are issued once the customers provide some information about themselves, such as mailing address and e-mail address. The customers who accept the card are given discounts, while the data about the customers is gathered by the store.

Justification:

The grocery store chains typically have several stores scattered over the whole country. Once a customer is issued a card, by taking their mailing address and e-mail address, the customer becomes a unique identity. Whenever the card is scanned after purchase, the store automatically gets the whole data regarding the purchase of the customer.

Thus, an answer to “What” data that is collected includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The stores aim at increasing their business profits. The complete information about each individual’s purchase helps the store to create a customer profile. The store management can decide customers of which age-group and gender buy which type of article. Determining which articles are frequently bought together helps the store management to arrange their goods in such a way that the goods attract the most attention; it also helps to decide which items to put on discount. This data helps the store management to decide on their advertisement policies, as well.

All this information is gathered to address the question “Why”behind the collection of the data; that is, to use the data to improve the business strategies of the store according to the time, place, and locality.

Answer 6

Chapter 1, Problem 1E

To determine

Explain about the “What” data the cards allow stores to gather.

Also explain “Why” the data would be wanted.

Expert Solution & Answer

Answer to Problem 1E

The “What” in the data gathered by the store includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The “Why” behind the collection of the data is to use the data to improve the business strategies of the store according to the time, place, and locality.

Explanation of Solution

Given info:

Several grocery store chains offer their customers a card to scan during check-out; they are issued once the customers provide some information about themselves, such as mailing address and e-mail address. The customers who accept the card are given discounts, while the data about the customers is gathered by the store.

Justification:

The grocery store chains typically have several stores scattered over the whole country. Once a customer is issued a card, by taking their mailing address and e-mail address, the customer becomes a unique identity. Whenever the card is scanned after purchase, the store automatically gets the whole data regarding the purchase of the customer.

Thus, an answer to “What” data that is collected includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The stores aim at increasing their business profits. The complete information about each individual’s purchase helps the store to create a customer profile. The store management can decide customers of which age-group and gender buy which type of article. Determining which articles are frequently bought together helps the store management to arrange their goods in such a way that the goods attract the most attention; it also helps to decide which items to put on discount. This data helps the store management to decide on their advertisement policies, as well.

All this information is gathered to address the question “Why”behind the collection of the data; that is, to use the data to improve the business strategies of the store according to the time, place, and locality.

Answer 7

Chapter 1, Problem 1E

To determine

Explain about the “What” data the cards allow stores to gather.

Also explain “Why” the data would be wanted.

Answer 8

Expert Solution & Answer

Answer to Problem 1E

The “What” in the data gathered by the store includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The “Why” behind the collection of the data is to use the data to improve the business strategies of the store according to the time, place, and locality.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Given info:

Several grocery store chains offer their customers a card to scan during check-out; they are issued once the customers provide some information about themselves, such as mailing address and e-mail address. The customers who accept the card are given discounts, while the data about the customers is gathered by the store.

Justification:

The grocery store chains typically have several stores scattered over the whole country. Once a customer is issued a card, by taking their mailing address and e-mail address, the customer becomes a unique identity. Whenever the card is scanned after purchase, the store automatically gets the whole data regarding the purchase of the customer.

Thus, an answer to “What” data that is collected includes the list of items purchased by the customer, the frequency of purchase by a particular customer, the date of purchase, the time of purchase, the locality from which the purchase is made, the locality of residence of the customer, and so on.

The stores aim at increasing their business profits. The complete information about each individual’s purchase helps the store to create a customer profile. The store management can decide customers of which age-group and gender buy which type of article. Determining which articles are frequently bought together helps the store management to arrange their goods in such a way that the goods attract the most attention; it also helps to decide which items to put on discount. This data helps the store management to decide on their advertisement policies, as well.

All this information is gathered to address the question “Why”behind the collection of the data; that is, to use the data to improve the business strategies of the store according to the time, place, and locality.

Answer 12

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Explain about the “What” data the cards allow stores to gather. Also explain “Why” the data would be wanted.

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Explain about the “What” data the cards allow stores to gather.

Also explain “Why” the data would be wanted.

Answer to Problem 1E

Explanation of Solution

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