AnswersHCISD-Mathematical Models with Applications B-CR SUMMERComparing Measures of Center and Variability

Comparing Measures of Center and Variability Answers

13 verified answers
1
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Answer:

126915

2
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Answer:

126916

3

95435✔ 5001,300

A
95
B
435
C
500
D
1,300
4

0.130.330.38✔ 0.87

A
0.13
B
0.33
C
0.38
D
0.87
5

1.82.6✔ 2.94.1

A
1.8
B
2.6
C
2.9
D
4.1
12

2✔ 336795

A
2
B
33
C
67
D
95
13

✔ 2.22.7 3.84.3

A
2.2
B
2.7
C
3.8
D
4.3
14

28.729.230.3✔ 30.8

A
28.7
B
29.2
C
30.3
D
30.8
15

✔ 35.235.736.837.3

A
35.2
B
35.7
C
36.8
D
37.3
28

Complete the statement to form the conclusion.It can be said with

A
90% confidence that between 42.5% and 47.9% of Americans own a dog.
B
90% confidence that between 45.2% and 54.8% of Americans own a dog.
C
95% confidence that between 42.5% and 47.9% of Americans own a dog.
D
95% confidence that between 45.2% and 54.8% of Americans own a dog.
29

If Terrence and Deena use the same confidence level, which statement best describes the results of their margin of error calculations?

A
Terrence’s margin of error will be exactly three times as large as Deena’s.
B
Deena’s margin of error is half the amount of Terrence’s.
C
If Terrence samples 800 more people, his margin of error will be the same as Deena’s.
D
If Deena samples 400 fewer people, her margin of error would be exactly half the amount of Terrence’s.
30

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Answer:

126924

31

How many households would Marcus have to survey in order to meet his requirements? n = [image 1] (1 – [image 2] ) • [image 3]

Question illustration
A
99 households
B
267 households
C
463 households
D
925 households

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