Remaining Time: 1 hour, 19 minutes, 15 seconds.Question Completion Status:Hypothesis Test (in terms of New - Last Year)Hypothesized ValueTest Statisticp-value (Lower Tail)p-value (Upper Tail)p-value (Two Tail)1.8965IBM is interested in comparing the average project completion time using last year's software versus using the new software. So, a consultanselected 36 projects using last year's software and 36 projects using the new software. The completion time (in hours) for each project was rentered into Excel. Can IBM conclude the average project completion time using the new software is greater than the average project compleyear's software at a=,005? Based on this paragraph of text, use the correct excel output above to answer the following question.For the hypothesis stated above, what is the decision (in terms of "New" minus "Last Year")?a, None of the answers is correctb. Reject Ho because p-value < a.c. Fail to reject Ho because p-value > a.d. Fail to reject Ho because p-value < a.e. Reject Ho because p-value > a.QUESTION 15PreviousCurrentYesYesResponse of Interestick Save and Submit to save and submit. Click Save All Answers to save all answers.MacBook AirD00B00 FAF3F2& NewLast YearSample SizeSample MeanSample Standard Deviation3675.19443669.416715.01777.3149df50Confidence Interval (in terms of New - Last Year)Confidence Coefficient0.80Lower Limit2.1621Upper Limit9.3935Hypothesis Test (in terms of New - Last Year)Hypothesized ValueTest Statisticp-value (Lower Tail)p-value (Upper Tail)p-value (Two Tail)2.0753New - Last YearSample SizeSample MeanSample Standard Deviation365.777818.2790Confidence Interval (in terms of New - Last Year)Confidence Coefficient0.80Lower Limit1.7984Upper Limit9.7571lick Save and Submit to save and submit. Click Save All Answers to save all answers.MacBo

For the hypothesis stated above, what is the decision (in terms of "New" minus "Last Year")? a. None of the answers is correct O b. Reject Ho because p-value a. Od. Fail to reject Ho because p-value < a. O e. Reject Ho because p-value > a.

For the hypothesis stated above, what is the decision (in terms of "New" minus "Last Year")? a. None of the answers is correct O b. Reject Ho because p-value a. Od. Fail to reject Ho because p-value < a. O e. Reject Ho because p-value > a.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

Question

New
Last Year
Sample Size
Sample Mean
Sample Standard Deviation
36
75.1944
36
69.4167
15.0177
7.3149
df
50
Confidence Interval (in terms of New - Last Year)
Confidence Coefficient
0.80
Lower Limit
2.1621
Upper Limit
9.3935
Hypothesis Test (in terms of New - Last Year)
Hypothesized Value
Test Statistic
p-value (Lower Tail)
p-value (Upper Tail)
p-value (Two Tail)
2.0753
New - Last Year
Sample Size
Sample Mean
Sample Standard Deviation
36
5.7778
18.2790
Confidence Interval (in terms of New - Last Year)
Confidence Coefficient
0.80
Lower Limit
1.7984
Upper Limit
9.7571
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Expert Solution

Step 1

t-statistc = 1.8965

n = 36

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