Data on the numbers of hospital admissions resulting from motor vehicle crashes are given be for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Assun that the paired sample data is a simple random sample and that the differences have a distrib that is approximately normal. Construct a 95% confidence interval estimate of the mean of the population of differences between hospital admissions. Use the confidence interval to test the claim that when the 13th day of a month falls on a Friday, the numbers of hospital admissions motor vehicle crashes are not affected. Friday the 6th Friday the 13th 3 11 3 4 10 13 10 10 15 12 In this example, Ha is the mean value of the differences d for the population of all pairs of data where each individual difference d is defined as the number of hospital admissions on Friday 6th minus the number of hospital admissions on Friday the 13th. Find the 95% confidence inte

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4. 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 interval estimate of the mean of the
population of differences between hospital admissions. Use the confidence interval to test 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.
Friday the 6th
Friday the 13th
3
11
3
4
10
13
10
10
15
12
In this example, Ha is the mean value of the differences d for the population of all pairs of data,
where each individual difference d is defined as the number of hospital admissions on Friday the
6th minus the number of hospital admissions on Friday the 13th. Find the 95% confidence interval.
> Prl >
(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?
O A. No, because the confidence interval includes zero.
O B. Yes, because the confidence interval does not include zero.
OC. Yes, because the confidence interval includes zero.
O D. No, because the confidence interval does not include zero.
Transcribed Image Text:4. 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 interval estimate of the mean of the population of differences between hospital admissions. Use the confidence interval to test 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. Friday the 6th Friday the 13th 3 11 3 4 10 13 10 10 15 12 In this example, Ha is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the number of hospital admissions on Friday the 6th minus the number of hospital admissions on Friday the 13th. Find the 95% confidence interval. > Prl > (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? O A. No, because the confidence interval includes zero. O B. Yes, because the confidence interval does not include zero. OC. Yes, because the confidence interval includes zero. O D. No, because the confidence interval does not include zero.
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