Mathematics, 27.04.2021 15:30, josuemarquezz27

A polling company conducted a survey asking 40 fourth year students from Ohio and 33 fourth-year students from Pennsylvania about on average, how many hours they spend on the computer per week. Ohio had an average of 52, while Pennsylvania had an average of 33. Ohio and Pennsylvania have standard deviations of 7.22 and 10.11 respectively. Construct a 99.9% confidence interval for the difference between these results.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 17:30, alexandroperez13

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Answers: 2

continue

Mathematics, 22.06.2019 00:20, sdwhitneyhillis

Which shows how to solve the equation 3/4x=6 for x in one step?

Answers: 2

continue

Mathematics, 22.06.2019 00:30, drewje12

Which polynomial equation of least degree has -2, -2, 3, and 3 as four of its roots? (x + 2)(x - 3) = 0 (x - 2)-2(x + 3)3 = 0 (x-2 + 2)(x2- 3) = 0 (x + 2)2(x - 3)2 = 0

Answers: 2

continue

Mathematics, 22.06.2019 01:20, lauretta

Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18 }, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.

Answers: 2

continue

Do you know the correct answer?

A polling company conducted a survey asking 40 fourth year students from Ohio and 33 fourth-year stu...