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16 Dec 2021
Given information
Given the results are in Table .
Northeastern States | 2011 | 2012 |
Connecticut | 17.3 | 16.4 |
Delaware | 17.4 | 13.7 |
Maine | 19.3 | 16.1 |
Maryland | 16.0 | 15.5 |
Massachusetts | 17.6 | 18.2 |
New Hampshire | 15.4 | 13.5 |
New Jersey | 19.2 | 18.7 |
New York | 18.5 | 18.7 |
Ohio | 18.2 | 18.8 |
Pennsylvania | 16.5 | 16.9 |
Rhode Island | 20.7 | 22.4 |
Vermont | 14.7 | 12.3 |
West Virginia | 15.5 | 17.3 |
Step-by-step explanation
Step 1.
a. The null hypothesis is defined as follows:
b. The following is an alternative hypothesis:
c. The average of the year-to-year variations.
d. Student’s t distribution.
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