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goldfiish [28.3K]
2 years ago
6

A grocery store has an average sales of $8000 per day. The store introduced several advertising campaigns in order to increase s

ales. To determine whether or not the advertising campaigns have been effective in increasing sales, a sample of 100 days of sales was selected. It was found that the average was $8300 per day. From past information, it is known that the standard deviation of the population is $1200. The p-value is
Business
1 answer:
vitfil [10]2 years ago
5 0

Answer:

0.0062

Explanation:

p = 1 - P(Z < Zcal)

Zcal = (8300-8000)/ (1200/√100)

Zcal = 2.5

p = 1 - P(Z < Zcal)

= 1 - P(Z < 2.5)

= 1 - 0.9938

= 0.0062

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3 years ago
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Answer:

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3 years ago
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A normal supply curve should move upward from left to right. The expresses the Law of Supply: (given that all other factors remain without change) As the price of a product increases, the quantity supplied should also increase.

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The answer is John should continue to fix the machine himself.
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Jesse wants my thoughts on how we can use prototyping for tims. she also wants me to prepare a system requirements document and
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When prototyping new products, most people will want a presentation on what the prototype will look like, the functions, the benefits, how it differs from previous products or other companies' products and the pricing. A management presentation is important because it should help break down all the information needed before approval of the new product is approved.

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