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Common Core Math 7 - MA3107 CR
Sampling Methods
Question 8
8
Assignment
Multiple Select
Sampling Methods
Question 8 • Common Core Math 7 - MA3107 CR
Which of the following did you include in your explanation?
Answer
A
To find the margin of error, multiply the z-score by the standard deviation, then divide by the square root of the sample size.
B
The z*-score for a 90% confidence level is 1.645.
C
The margin of error is 0.20.
D
The confidence interval is 48.3 to 48.7.
E
48.8 is not within the confidence interval.
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