Data were collected on lost-time accidents (mean work-hours lost per month over a period of 1 year) before and after an industrial safety program was put into effect at six industrial plant Before Program After Program USE SALT Ho: Md < 0 versus H₂: O Ho: = 0 versus H: 1 39 #0 >0 32 2 63 57 Plant Number 3 4 43 45 68 63 5 59 50 Do the data provide sufficient evidence to indicate whether the safety program was effective in reducing lost-time accidents? Test using a = 0.01. (Use before. State the null and alternative hypotheses. Ho: μ = 0 versus H₂: O Ho: H = 0 versus H₂: >0 <0 Ho: #0 versus H₁: μ = 0 State the test statistic. (Round your answer to three decimal places.) 6 29 29 State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to three decimal places.) State the conclusion. O Ho is not rejected. There is insufficient evidence to indicate that the safety program was effective in reducing lost-time accidents. O Ho is rejected. There is insufficient evidence to indicate that the safety program was effective in reducing lost-time accidents. O Ho is rejected. There is sufficient evidence to indicate that the safety program was effective in reducing lost-time accidents. O Ho is not rejected. There is sufficient evidence to indicate that the safety program was effective in reducing lost-time accidents. Mafter = d.)
Data were collected on lost-time accidents (mean work-hours lost per month over a period of 1 year) before and after an industrial safety program was put into effect at six industrial plant Before Program After Program USE SALT Ho: Md < 0 versus H₂: O Ho: = 0 versus H: 1 39 #0 >0 32 2 63 57 Plant Number 3 4 43 45 68 63 5 59 50 Do the data provide sufficient evidence to indicate whether the safety program was effective in reducing lost-time accidents? Test using a = 0.01. (Use before. State the null and alternative hypotheses. Ho: μ = 0 versus H₂: O Ho: H = 0 versus H₂: >0 <0 Ho: #0 versus H₁: μ = 0 State the test statistic. (Round your answer to three decimal places.) 6 29 29 State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to three decimal places.) State the conclusion. O Ho is not rejected. There is insufficient evidence to indicate that the safety program was effective in reducing lost-time accidents. O Ho is rejected. There is insufficient evidence to indicate that the safety program was effective in reducing lost-time accidents. O Ho is rejected. There is sufficient evidence to indicate that the safety program was effective in reducing lost-time accidents. O Ho is not rejected. There is sufficient evidence to indicate that the safety program was effective in reducing lost-time accidents. Mafter = d.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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I need help with all parts of this question 18
Transcribed Image Text:Data were collected on lost-time accidents (mean work-hours lost per month over a period of 1 year) before and after an industrial safety program was put into effect at six industrial plants.
Before Program
After Program
USE SALT
1
39
32
2
63
57
Plant Number
3
4
68
43
45
63
5
6
59
29
50 29
Do the data provide sufficient evidence to indicate whether the safety program was effective in reducing lost-time accidents? Test using a = 0.01. (Use before - Mafter = d.)
State the null and alternative hypotheses.
O Ho: μ = 0 versus H₂: μ = 0
O Ho: μ = 0 versus H₂: μ> 0
O Ho: μ< 0 versus H₂: μ> 0
O Ho: μ = 0 versus H₂: μ< 0
O Ho: H0 versus H₂: μ = 0
State the test statistic. (Round your answer to three decimal places.)
t =
State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to three decimal places.)
State the conclusion.
O Ho is not rejected. There is insufficient evidence to indicate that the safety program was effective in reducing lost-time accidents.
O Ho is rejected. There is insufficient evidence to indicate that the safety program was effective in reducing lost-time accidents.
O Ho is rejected. There is sufficient evidence to indicate that the safety program was effective in reducing lost-time accidents.
O Ho is not rejected. There is sufficient evidence to indicate that the safety program was effective in reducing lost-time accidents.
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