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Data on the numbers of hospital admissions resulting from motor vehicle crashes are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Assume that the paired sample data is a simple random
sample and that the differences have a distribution that is approximately normal. Construct a 95% confidence
claim that when the 13th day of a month falls on a Friday, the numbers of hospital admissions from motor vehicle crashes are not affected.
Friday the 6th 6 8 9 5 11
Friday the 13th 13 11 14 14 14
In this example, μd is the
Friday the 13th. Find the 95% confidence interval.
----------< μd <----------(Round to two decimal places as needed.)
Based on the confidence interval, can one reject the claim that when the 13th day of a month falls on a Friday, the numbers of hospital admissions from motor vehicle crashes are not affected?
A. No, because the confidence No interval includes zero.
B. No, because the confidence interval does not include zero.
C. Yes, because the confidence interval does not include zero.
D. Yes, because the confidence interval includes zero
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