Homework Help is Here – Start Your Trial Now!
Math
Statistics
Although the Occupational Safety and Health Act (OSHA) is not very popular with management because it is expensive to implement, some sources claim that it has been effective in reducing industrial accidents. The following data were collected on last time

Although the Occupational Safety and Health Act (OSHA) is not very popular with management because it is expensive to implement, some sources claim that it has been effective in reducing industrial accidents. The following data were collected on last time

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
See similar textbooks
icon
Related questions
Question
d E 80 F3 Page < 2 of 2 2. Although the Occupational Safety and Health Act (OSHA) is not very popular with management because it is expensive to implement, some sources claim that it has been effective in reducing industrial accidents. The following data were collected on lost-time accidents both before and after OSHA came into effect (the figures given are mean man-hours lost per month over a one year period) at six different industrial plants: Plant 1 2 3 4 5 6 38 64 42 70 58 30 Before OSHA After OSHA 31 58 43 65 52 29 Difference (B-A) a. A test is to be performed to see if OSHA has been effective in reducing the industrial accidents. Differences are calculated as "Before - After". Enter those differences in the table. b. What was the average reduction in man-hours lost per month in the sample? c. The population of differences has a normal distribution. The sample standard deviation equals 3.225 hours. Test the claim that OSHA has been effective in reducing the average number of man-hours lost per month using a 0.05 significance level. MacBook Air Q C DD F6 F9 $ 4 F4 R % 5 9 F5 T < 6 Y & 7 8 F7 U * 0 8 DII F8 I ( 9 0 0 A F10 P c
Transcribed Image Text:d E 80 F3 Page < 2 of 2 2. Although the Occupational Safety and Health Act (OSHA) is not very popular with management because it is expensive to implement, some sources claim that it has been effective in reducing industrial accidents. The following data were collected on lost-time accidents both before and after OSHA came into effect (the figures given are mean man-hours lost per month over a one year period) at six different industrial plants: Plant 1 2 3 4 5 6 38 64 42 70 58 30 Before OSHA After OSHA 31 58 43 65 52 29 Difference (B-A) a. A test is to be performed to see if OSHA has been effective in reducing the industrial accidents. Differences are calculated as "Before - After". Enter those differences in the table. b. What was the average reduction in man-hours lost per month in the sample? c. The population of differences has a normal distribution. The sample standard deviation equals 3.225 hours. Test the claim that OSHA has been effective in reducing the average number of man-hours lost per month using a 0.05 significance level. MacBook Air Q C DD F6 F9 $ 4 F4 R % 5 9 F5 T < 6 Y & 7 8 F7 U * 0 8 DII F8 I ( 9 0 0 A F10 P c
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS