Suburb After Before Diff Burr Oak 4 4 0 Elgin Corners 1 2 -1 Elm Grove 8 3 5 Greenburg 0 6 -6 Huntley 7 2 5 North Lyman 7 1 6 South Lyman 4 7 -3 Pin Oak 0 12 -12 Victorville 7 5 2 (b) Find the test statistic tcalc. (A negative amount should be indicated by a minus sign. Round your answer to 2 decimal place.) (c) State the critical value tcrit for α = .05. (A negative amount should be indicated by a minus sign. Round your answer to 3 decimal place.) (d) Find the p-value. (Round your answer to 4 decimal place.) (e) State your conclusion.
Suburb After Before Diff Burr Oak 4 4 0 Elgin Corners 1 2 -1 Elm Grove 8 3 5 Greenburg 0 6 -6 Huntley 7 2 5 North Lyman 7 1 6 South Lyman 4 7 -3 Pin Oak 0 12 -12 Victorville 7 5 2 (b) Find the test statistic tcalc. (A negative amount should be indicated by a minus sign. Round your answer to 2 decimal place.) (c) State the critical value tcrit for α = .05. (A negative amount should be indicated by a minus sign. Round your answer to 3 decimal place.) (d) Find the p-value. (Round your answer to 4 decimal place.) (e) State your conclusion.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Concerned about graffiti, mayors of nine suburban communities instituted a citizen Community Watch program.
| Community | Monthly Incidents After | Monthly Incidents Before |
|---|---|---|
| Burr Oak | 4 | 4 |
| Elgin Corners | 1 | 2 |
| Elm Grove | 8 | 3 |
| Greenburg | 0 | 6 |
| Huntley | 7 | 2 |
| North Lyman | 7 | 1 |
| South Lyman | 4 | 7 |
| Pin Oak | 0 | 12 |
| Victorville | 7 | 5 |
| Number of Graffiti Incidents Before and After Citizen Watch Program (n = 9) | |||||||||||
|
|
|||||||||||
| Suburb | After | Before | Diff | ||||||||
| Burr Oak | 4 | 4 | 0 | ||||||||
| Elgin Corners | 1 | 2 | -1 | ||||||||
| Elm Grove | 8 | 3 | 5 | ||||||||
| Greenburg | 0 | 6 | -6 | ||||||||
| Huntley | 7 | 2 | 5 | ||||||||
| North Lyman | 7 | 1 | 6 | ||||||||
| South Lyman | 4 | 7 | -3 | ||||||||
| Pin Oak | 0 | 12 | -12 | ||||||||
| Victorville | 7 | 5 | 2 | ||||||||
(b) Find the test statistic tcalc. (A negative amount should be indicated by a minus sign. Round your answer to 2 decimal place.)
(c) State the critical value tcrit for α = .05. (A negative amount should be indicated by a minus sign. Round your answer to 3 decimal place.)
(d) Find the p-value. (Round your answer to 4 decimal place.)
(e) State your conclusion.
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