IBM is interested in comparing the average project completion time using last year's software versus using the new software. So, a consultant for IBM randomly selected 36 projects using last year's software and 36 projects using the new software. The completion time (in hours) for each project was recorded and then entered into Excel. Can IBM conclude the average project completion time using the new softwarejs greater than the average project completion time using last year's software at a=.005? Based on this paragraph of text, use the correct excel output above to ahswer the following question. For the hypothesis stated above, what is the decision (in terms of "New" minus "Last Year")? O a. Reject Ho because p-value < a. O b. Fail to reject Ho because p-value < a. O C. Reject Ho because p-value > a. O d. Fail to reject Ho because p-value > a. O e. None of the answers is correct

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New
36
76.1944
Last Year
Sample Size
Sample Mean
Sample Standard Deviation
36
69.8333
14,5893
5.8530
df
45
Confidence lInterval (in terms of New - Last Year)
Confidence Coefficient
Lower Limit
0.80
2.9535
9.7687
Upper Limit
Hypothesis Test (in terms of New - Last Year)
Hypothesized Value
Test Statistic
2.4280
p-value (Lower Tail)
p-value (Upper Tail)
p-value (Two Tail)
New - Last Year
Sample Size
Sample Mean
Sample Standard Deviation
36
6.3611
16.3500
Confidence Interval (in terms of New - Last Year)
Confidence Coefficient
Lower Limit
0.80
2.8017
9.9205
Upper Limit
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Transcribed Image Text:New 36 76.1944 Last Year Sample Size Sample Mean Sample Standard Deviation 36 69.8333 14,5893 5.8530 df 45 Confidence lInterval (in terms of New - Last Year) Confidence Coefficient Lower Limit 0.80 2.9535 9.7687 Upper Limit Hypothesis Test (in terms of New - Last Year) Hypothesized Value Test Statistic 2.4280 p-value (Lower Tail) p-value (Upper Tail) p-value (Two Tail) New - Last Year Sample Size Sample Mean Sample Standard Deviation 36 6.3611 16.3500 Confidence Interval (in terms of New - Last Year) Confidence Coefficient Lower Limit 0.80 2.8017 9.9205 Upper Limit Click Save and Submit to save and submit. Click Save All Answers to save all answers. MacBook Pro
Sample Standard Deviation
16.3500
Confidence Interval (in terms of New - Last Year)
Confidence Coefficient
Lower Limit
0.80
2.8017
9.9205
Upper Limit
Hypothesis Test (in terms of New - Last Year)
Hypothesized Value
Test Statistic
p-value (Lower Tail)
p-value (Upper Tail)
p-value (Two Tail)
2.3344
IBM is interested in comparing the average project completion time using last year's software versus using the new software. So, a consultant for IBM randomly
selected 36 projects using last year's software and 36 projects using the new software. The completion time (in hours) for each project was recorded and then
entered into Excel. Can IBM conclude the average project completion time using the new softwarejs greater than the average project completion time using last
year's software at a=.005? Based on this paragraph of text, use the correct excel output above to ahswer the following question.
For the hypothesis stated above, what is the decision (in terms of "New" minus "Last Year")?
O a. Reject Ho because p-value < a.
O D. Fail to reject Ho because p-value < a.
O C. Reject Ho because p-value > a.
O d. Fail to reject Ho because p-value > a.
O e. None of the answers is correct
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Save A
MacBook Pro
Transcribed Image Text:Sample Standard Deviation 16.3500 Confidence Interval (in terms of New - Last Year) Confidence Coefficient Lower Limit 0.80 2.8017 9.9205 Upper Limit Hypothesis Test (in terms of New - Last Year) Hypothesized Value Test Statistic p-value (Lower Tail) p-value (Upper Tail) p-value (Two Tail) 2.3344 IBM is interested in comparing the average project completion time using last year's software versus using the new software. So, a consultant for IBM randomly selected 36 projects using last year's software and 36 projects using the new software. The completion time (in hours) for each project was recorded and then entered into Excel. Can IBM conclude the average project completion time using the new softwarejs greater than the average project completion time using last year's software at a=.005? Based on this paragraph of text, use the correct excel output above to ahswer the following question. For the hypothesis stated above, what is the decision (in terms of "New" minus "Last Year")? O a. Reject Ho because p-value < a. O D. Fail to reject Ho because p-value < a. O C. Reject Ho because p-value > a. O d. Fail to reject Ho because p-value > a. O e. None of the answers is correct Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save A MacBook Pro
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