Mathematics, 12.08.2021 14:50 joc223
You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you believe the population standard deviation is approximately
σ
=
28.1
σ
=
28.1
dollars. You would like to be 90% confident that your estimate is within 3 dollar(s) of average spending on the birthday parties. How many parents do you have to sample?
Answers: 3
Mathematics, 21.06.2019 15:30, mattstudy305
The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?
Answers: 1
Mathematics, 21.06.2019 15:50, cluchmasters3831
How many zeros does the function f(x)=4x3-x2+1 have
Answers: 1
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