An investigation of the effectiveness of an antibacterial soap in reducing operating room contamination resulted in the accompanying table. The new soap was tested in a sample of eight operating rooms in the greater Seattle area during the last year. The following table reports the contamination levels before and after the use of the soap for each operating room. Operating Room A B C D E F G H Before 6.6 6.5 9.0 10.3 11.2 8.1 6.3 11.6 After 6.8 2.4 7.4 8.5 8.1 6.1 3.4 2.0 State the decision rule for 0.05 significance level: H0: μd ≤ 0; H1: μd> 0. (Round your answer to 3 decimal places.) 2. Compute the value of the test statistic. (Round your answer to 2 decimal places.)

An investigation of the effectiveness of an antibacterial soap in reducing operating room contamination resulted in the accompanying table. The new soap was tested in a sample of eight operating rooms in the greater Seattle area during the last year. The following table reports the contamination levels before and after the use of the soap for each operating room. Operating Room A B C D E F G H Before 6.6 6.5 9.0 10.3 11.2 8.1 6.3 11.6 After 6.8 2.4 7.4 8.5 8.1 6.1 3.4 2.0 State the decision rule for 0.05 significance level: H0: μd ≤ 0; H1: μd> 0. (Round your answer to 3 decimal places.) 2. Compute the value of the test statistic. (Round your answer to 2 decimal places.)

Name: An investigation of the effectiveness of an antibacterial soap in redu
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Description: An investigation of the effectiveness of an antibacterial soap in reducing operating room contamination resulted in the accompanying table. The new soap was tested in a sample of eight operating rooms in the greater Seattle area during the last year.

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 25PFA

See similar textbooks

	Operating Room
A	B	C	D	E	F	G	H
Before	6.6	6.5	9.0	10.3	11.2	8.1	6.3	11.6
After	6.8	2.4	7.4	8.5	8.1	6.1	3.4	2.0