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

Quiz
•
Mathematics
•
9th - 12th Grade
•
Hard
Barbara White
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
90%
95%
98%
99%
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Find the value of z* for a 93% confidence interval.
-1.96
1.645
1.881
-1.598
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
1) A 90% confidence interval for the mean speed driven by cars on Skillman road is given by (21, 45). What was the sample mean of this study?
7.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
A 90% confidence interval for the mean speed driven by cars on Skillman road is given by (21, 45). What was the margin of error of this study?
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