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the following are the average weekly losses of worker-hours due to accidents in 10 industrial plants...

the following are the average weekly losses of worker-hours due to accidents in 10 industrial plants before and after a certain safety program was put into operation:

BEFORE

plant 1: 45

plant 2: 73

plant 3: 46

plant 4: 124

plant 5: 33

plant 6: 57

plant 7: 83

plant 8: 34

plant 9: 26

plant 10: 17

AFTER

plant 1: 36

plant 2: 60

plant 3: 44

plant 4: 119

plant 5: 35

plant 6: 51

plant 7: 77

plant 8: 29

plant 9: 24

plant 10: 11

conduct a paired t test to analyze this problem. use the 0.05 level of significant to test whether the safety program is effective.

the t statistic for this test is _____

the number of degrees of freedom for this test is ____

IS STATEMENT BELOW TRUE or FALSE? __________

the null hypothesis must be rejected at level alpha = 0.05. we conclude that the industrial safety program is effective. the evidence is strong since a computer calculation gives the p value = 0.9985.

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