12/08/22
1. Which of the following is an appropriate confidence interval to indicate significance for a risk difference of -2.4? 2. A. -2.5 to 0.67 B. 2.4 to 3.6 C. -2.5 to -1.4 D. -2.5 to 1.9
Which of the following is an appropriate confidence interval to indicate significance for a risk difference of -2.4?
A.
-2.5 to 0.67
B.
2.4 to 3.6
C.
-2.5 to -1.4
D.
-2.5 to 1.9
11/04/22
What are the sample mean and margin of error?
50 random flights from D.C to New York City were selected and the resulting 95% confidence interval was (82.5, 88.7). What are the sample mean and margin of error?
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