Search Header Logo

Statistics Confidence Interval

Authored by Anthony Clark

Mathematics

12th Grade

Statistics Confidence Interval
AI

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

    Content View

    Student View

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%

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?