Question

Test: Last Exam Ch8-Ch10Sp19 Time Remaining: 00:38 37 Submit Test This Test: 78 pts possible This Question: 3 pts 4 of 22 (10 complete) 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 E 11 3 2 14 11 14 12 14 In this example, is the mean value of the dilferences 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 (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 fals on a Friday, the rumbers of hospital admissions from motor vehicle crashes are not affected? OA. Yes, because the confidence interval does not include zero. O B. No. because the confidence interval includos zero OC. No. because the confidence interal does not inckude zero OD. Yes, because the confidence interval includes zero N

Answer 1

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