Question
In: Statistics and Probability
The average American girl purchases 5.5 pairs of sports shoes. Suppose a sample of 64 customers...
The average American girl purchases 5.5 pairs of sports shoes. Suppose a sample of 64 customers is surveyed and the population standard deviation of shoes purchased is 2.3.
What is the standard error of the mean in the experiment?
| a. |
2.3 |
|
| b. |
3.2 |
|
| c. |
0.2875 |
|
| d. |
.5 |
2)
The average American girl purchases 5.5 pairs of sports shoes. Suppose a sample of 64 customers is surveyed and the population standard deviation of shoes purchased is 2.3.
What is the probability that the difference between the sample mean and population mean is less than 0.2?
| a. |
0.258 |
|
| b. |
0.516 |
|
| c. |
0.05 |
|
| d. |
0.742 |
3)
The average American girl purchases 5.5 pairs of sports shoes. Suppose a sample of 64 customers is surveyed and the population standard deviation of shoes purchased is 2.3.
What is the likelihood that the sample mean calculated is less than 5?
| a. |
0.5409 |
|
| b. |
.0195 |
|
| c. |
.041 |
|
| d. |
.491 |
4)
The average American girl purchases 5.5 pairs of sports shoes. Suppose a sample of 64 customers is surveyed and the population standard deviation of shoes purchased is 2.3.
What is the probability that the sample mean is between 5 and 6 pairs of shoes?
| a. |
.4591 |
|
| b. |
0.9182 |
|
| c. |
0.04 |
|
| d. |
0.5-.4591 |
Solutions
orchestra answered 2 years agoRelated Solutions
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64 randomly selected students were asked the number of pairs of shoes they have. Let X...
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# of Pairs of
Shoes
4
5
6
7
8
9
10
11
12
13
14
15
Frequency
4
4
3
7
2
5
10
5
5
8
6
5
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PPF
MC
MB
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Clothes (million pieces per hour)
Shoes (million pairs per hour)
Clothes (million pieces per hour)
Shoes (million
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Clothes (million pieces per hour)
0
35
1
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0.5
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1.5
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Suppose Nike opened a new production plant in China to produce sports clothes and shoes. After...
Suppose Nike opened a new production plant in China to produce
sports clothes and shoes. After operating for several years, the
company collected the following data about production possibilities
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PPF
MB
Shoes (million pairs per year)
Clothes (million pieces per hour)
Shoes (million
pairs per year)
Clothes (million pieces per year)
0
35
1
32
0.5
10
2
27
1.5
8.5
3
20
2.5
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4
11
3.5
5.5
5
0
4.5
4...
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PPF
MB
Shoes (million pairs per year)
Clothes (million pieces per hour)
Shoes (million
pairs per year)
Clothes (million pieces per year)
0
35
1
32
0.5
10
2
27
1.5
8.5
3
20
2.5
7
4
11
3.5
5.5
5
0
4.5
4...
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