The town of Butler received 6 more inches of snow than the town of Chicora. Let c represent the amount of snow in Chicora. Which
1 answer:
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Solution :
Group Before After
Mean 693.75 743.75
Sd 155.37 143.92
SEM 54.93 50.88
n 8 8
Null hypothesis : The preparation course not effective.
Alternative hypothesis : The preparation course is effective in improving the exam scores.
(after - before)