Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results are given below for Fridays on the 6th of a month 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 increases. Friday the 6th: 9 12 11 11 3 5Friday the 13th: 13 12 14 10 4 12a. Fill in the table with the appropriate signs. Friday the 6th: 9 12 11 11 3 5Friday the 13th: 13 12 14 10 4 12 Sign: nothing nothing nothing nothing nothing nothing b. StateUpper H 0 andUpper H 1. A.Upper H 0 : Median of differences equals 0 comma Upper H 1 : Median not equals 0 B.Upper H 0 : Median of differences equals 0 comma Upper H 1 : Median less than 0 C.Upper H 0 : Median of differences equals 0 comma Upper H 1 : Median greater than 0 c. Calculate x and n and find the critical value x =nothing n =nothing Critical value = nothing d. State the technical conclusion. A.Reject Upper H 0 B.Do not reject Upper H 0 e. State the final conclusion. A.The sample data support the claim. B.There is not sufficient sample evidence to support the claim. C.There is sufficient evidence to warrant rejection of the claim. D.There is not sufficient evidence to warrant rejection of the claim. f. Does it appear that Friday the 13th is unlucky in terms of the number motor vehicle crashes?

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Description: Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results are given below for Fridays on the 6th of a month and Fridays on the following 13th of the same month. Use a 0.05 significance level t

(1) Let {\mu _d}μd be the difference of means in the numbers of hospital admissions resulting from…

Answered: Researchers collected data on the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results are given below for Fridays on the 6th of a month 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 increases.

Friday the 6th: 9

11 11 3 5

Friday the 13th: 13 12 14 10 4 12

a. Fill in the table with the appropriate signs.

Friday the 6th: 9

11 11 3 5

Friday the 13th: 13 12 14 10 4 12

Sign:

nothing

b. State

Upper H 0

and

Upper H 1

Upper H 0 : Median of differences equals 0 comma Upper H 1 : Median not equals 0

Upper H 0 : Median of differences equals 0 comma Upper H 1 : Median less than 0

Upper H 0 : Median of differences equals 0 comma Upper H 1 : Median greater than 0

c. Calculate x and n and find the critical value

x =

nothing

n =

nothing

Critical value = nothing

d. State the technical conclusion.

Reject Upper H 0

Do not reject Upper H 0

e. State the final conclusion.

The sample data support the claim.

There is not sufficient sample evidence to support the claim.

There is sufficient evidence to warrant rejection of the claim.

There is not sufficient evidence to warrant rejection of the claim.

f. Does it appear that Friday the 13th is unlucky in terms of the number motor vehicle crashes?

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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