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Do Homework Len Badeau Google Chrome cure Secure l https://www.mathxl.com/Stud ent/PlayerHomework.aspx?homeworkida 4077663908questionld-88kflushed true&cld-42989s88centerwin; yes STA2023-Spring-Monday 9:30-10:45 AM-REF 560403 Jan-May-2017 criti Homework: Assignment #4 Score: 0 of 1 pt 20 of 25 (20 complete) v HW Score: 74.67%, 18 67 of 25 pts (X) 9.4.15 EQuestion Help Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results are below for Fridays on the 6th of a month given il and Fridays on the following 13th of the same month. Use a 0.05 significance level 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 6 12 12 4 40 Friday the 13th: 15 13 15 11 6 10 What are the hypotheses for this test? Let ud be the mean of the differences in the numbers of hospital admissions resulting from motor vehicle crashes for the population of all pairs of data Find the value of the test statistic. t (Round to three decimal places as needed) Enter your answer in the answer box and then click Check Answer

Explanation / Answer

from above test stat t=-3.051( make +ve if difference is considered on other way round)|

Friday 6th Friday 13th difference(d) 10 15 -5 6 13 -7 12 15 -3 12 11 1 4 6 -2 4 10 -6 mean -3.667 std deviaition 2.9439 sample size 6.0000 std error= std dev/(n)^(1/2) 1.2019 t stat= (d)/std error -3.0509 p value = 0.0284

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