AnswersNC-Math 4Introduction to Sampling Distributions

Introduction to Sampling Distributions Answers

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Sixty-eight percent of tickets for a particular football team are owned by season-pass holders. At a recent game, the home team decides to have a raffle where 100 seats in the stadium are randomly selected, and the people with the tickets to those seats will each receive a free team shirt. Seventy-three of those selected are season-pass holders. Which of the following statements is true?

A
All tickets for the particular team are the population, and the 100 selected are the sample.
B
All tickets for the particular team are the parameter, and the 100 selected are the statistic.
C
All seats in the stadium are the parameter, and the 100 selected are the statistic.
D
All seats in the stadium are the population, and the 100 selected are the sample.
2
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sample distribution✔ sampling distributionpopulation distribution

A
sample distribution
B
✔ sampling distribution
C
population distribution
170415

According to the state of Georgia, 24% of all registered vehicles in Georgia are black. A random sample of cars was taken in a large grocery store parking lot in Georgia, and 18% of cars were black.

Answers:
The cars in the parking lot are the while all of the cars registered in Georgia is the .:sample
The cars in the parking lot are the while all of the cars registered in Georgia is the .:population
170416

parameter✔ populationsamplestatistic

A
parameter
B
✔ population
C
sample
D
statistic
170418

2 4 ✔ 612

A
2
B
4
C
✔ 6
D
12
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values of the selected pairs✔ mean of the selected pairsprice of each pair

A
values of the selected pairs
B
✔ mean of the selected pairs
C
price of each pair
170420

BR✔ WG

Answers:
Complete the two remaining possible samples of size 3. BG:W
RW:G
The mean for the first sample displayed in the table is what value? $:60
How would you best describe the sampling distribution of the means of the samples? There will be dots located at the .:4
How would you best describe the sampling distribution of the means of the samples? There will be dots located at the .:mean of the selected pairs
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BRW✔ G

A
B
B
R
C
W
D
✔ G
170422

3050✔ 6070

A
30
B
50
C
✔ 60
D
70
170423

23 ✔ 48

A
2
B
3
C
✔ 4
D
8
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price of each pair✔ mean of the selected pairsvalues of the selected pairs

A
price of each pair
B
✔ mean of the selected pairs
C
values of the selected pairs
170425

Four pairs of shoes you like are for sale. The black boots cost $70, the red boots cost $60, the white sneakers cost $50, and the green sandals cost $30. Complete the statements regarding the 3 different types of distributions when taking samples of size n = 2 and calculating the mean of each sample.

Answers:
The distribution is the distribution of the cost of all the pairs of shoes.:population
The distribution is the distribution of all the average costs of randomly selecting two pairs of shoes.:sampling
The distribution is the distribution that results from selecting two pairs of shoes.:sample
170426

populationsample✔ sampling

A
population
B
sample
C
✔ sampling
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population✔ samplesampling

A
population
B
✔ sample
C
sampling
170430

sample distributionsampling distribution✔ population distribution

A
sample distribution
B
sampling distribution
C
✔ population distribution

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