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 from motor vehicle crashes are not affected. Friday the 6th: Friday the 13th: 9 13 5 11 10 13 10 9 4 6 4 10 mean of the differences, =, /= Find the value of the test statistic. (Round to three decimal places as needed.) Identify the critical value(s). Select the correct choice below and fill the answer box within your choice. (Round to three decimal places as needed.) a. The critical value is t=. b. The critical values are t=±. State the result of the test. Choose the correct answer below. A. There is sufficient evidence to warrant rejection of the claim of no effect. Hospital admissions do not appear to be affected. B. There is not sufficient evidence to warrant rejection of the claim of no effect. Hospital admissions do not appear to be affected. C. There is not sufficient evidence to warrant rejection of the claim of no effect. Hospital admissions appear to be affected. D. There is sufficient evidence to warrant rejection of the claim of no effect. Hospital admissions appear to be affected.

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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

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 13PT

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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 from motor vehicle crashes are not affected.

Friday the 6th: Friday the 13th:
9 13
5 11
10 13
10 9
4 6
4 10

mean of the differences, =, /=

Find the value of the test statistic.

(Round to three decimal places as needed.)

Identify the critical value(s). Select the correct choice below and fill the answer box within your choice.

(Round to three decimal places as needed.)

a. The critical value is t=__.

b. The critical values are t=±__.

State the result of the test. Choose the correct answer below.

A. There is sufficient evidence to warrant rejection of the claim of no effect. Hospital admissions do not appear to be affected.

B. There is not sufficient evidence to warrant rejection of the claim of no effect. Hospital admissions do not appear to be affected.

C. There is not sufficient evidence to warrant rejection of the claim of no effect. Hospital admissions appear to be affected.

D. There is sufficient evidence to warrant rejection of the claim of no effect. Hospital admissions appear to be affected.

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