2. In the US, about half of all homes with a basement also have a sump pump. A plumbing company surveys 673 homeowners with basements, chosen through a random sample, and finds that of those 673,
there are 392 who own a sump pump. Does this survey constitute significant evidence evidence that
Chicago homes with basements have sump pumps at a higher rate than the average in the US? Use a
hypothesis test to support your findings.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

choose (5, 1.5) and (-1.5,-3.5)

step-by-step explanation:

5 - 1.5 =3.5

-1.5 - (-3.5) = 2

3.5 + 2 =5.5

hope this !