Statistics Confidence Interval

Statistics Confidence Interval

12th Grade

20 Qs

quiz-placeholder

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Statistics Confidence Interval

Statistics Confidence Interval

Assessment

Quiz

Mathematics

12th Grade

Hard

Created by

Anthony Clark

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In a survey of 104 students, it was found that 79 went to the homecoming game this year. Calculate a 99% confidence interval for p.

(0.652, 0.868)

(0.691, 0.829)

(0.678, 0.842(

(0.685, 0.895)

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In a survey of 104 students, it was found that 79 went to the homecoming game this year. A 99% confidence interval for p is (0.652, 0.868). Interpret this interval.

99% of the time the true proportion of people who went to the homecoming game this year is between 65.2% and 86.6%.

The probability that the population proportion of people who went to the homecoming game this year is between 65.2% and 86.6% is 95%.

Based on this sample, I am 99% confident that the true proportion of people who went to the homecoming game this year is between 65.2% and 86.6%.

99% of all possible intervals calculated this way will capture the true proportion of people who went to the homecoming game this year

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If 827 represents "no" voters out of 2584, construct a 95% confidence interval for the "no" group.

[.300,.340]

[.298,.342]

[.302,.338]

[.288,.352]

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Identify the confidence interval used in the figure below if each shaded area is equal to 0.05.

90%

95%

98%

99%

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A recent survey found that out of 400 random American adults, 89% pay their bills on time. The margin of error in this survey was 2%. What is the interval of values in which the truth is likely found?

89% - 91%

87% - 89%

87% - 91%

388 - 402

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image
A
B
C
D

7.

DRAG AND DROP QUESTION

1 min • 2 pts

A 95% confidence interval was conducted on American adults aged 45-64 and found that the between 15.7% and 19.4% had diabetes as of 2016. a) What is the population proportion that has diabetes according to this confidence interval? ​ (a)   b) What was the margin of error associated with this data? ​ (b)  

17.55%

1.85%

11.55

5.775

11.55%

5.775%

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