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You want to see if grasshoppers are less abundant in mowed prairies. you set up a...

You want to see if grasshoppers are less abundant in mowed prairies. you set up a before – after study where are you count grasshoppers and 12 prairies before the moon treatment and again in the same Prairie after mowing treatment. Explain how you would analyze this. Also meantion the specifc statistical technique.
math   Statistics-And-Probability   
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Answer #1

this will be analused by paired t test

as before-after study was being set up

....................

we will find the difference of before-after

then mean of these difference,D̅ =

then std dev of difference ,Sd

std error , SE = Sd / √n

t-statistic = (D̅ - µd)/SE

and then compare this tst stat with critical value

.......................

Please revert back in case of any doubt.

Please upvote. Thanks in advance.

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