Margin of Error is equal to:
Confidence Intervals Z

Quiz
•
Other
•
12th Grade
•
Hard
Barbara White
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Standard Deviation
2 * Standard Deviation
Critical Value
Point Estimate
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
True or False: The more confident you want to be, the smaller your confidence interval will be.
True
False
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which of the following changes to a study would result in a smaller confidence interval?
increasing the confidence level, increasing the sample size
increasing the confidence level, decreasing the sample size
decreasing the confidence level, decreasing the sample size
decreasing the confidence level, increasing the sample size.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which z-value is used for a 95% confidence interval?
2.58
1.66
1.96
2.33
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The amount added and subtracted to the statistic.
Margin of Error
Confidence Interval
Z Score
Population
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the margin of error for the interval (6.8, 12.9)?
9.85
3.05
3.50
6.8
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The height of women is normally distributed with an average height of 64 inches and a standard deviation of 2.5 inches. What interval contains 99.7% of all data?
61.5 to 66.5
56.5 to 71.5
59 to 69
2.5 to 99.7
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