Mathematics, 17.04.2020 02:49, QTpieNay

A lumber company is making boards that are 2920.0 millimeters tall. If the boards are too long they must be trimmed, and if they are too short they cannot be used. A sample of 12 boards is made, and it is found that they have a mean of 2922.7 millimeters with a variance of 121.00. Is there evidence at the 0.05 level that the boards are either too long or too short? Assume the population distribution is approximately normal. Step 2 of 5 : Find the value of the test statistic. Round your answer to three decimal places.

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 14:30, emily41950

Every time you drive you will experience a combination of driving conditions and environments.

Answers: 1

continue

Mathematics, 21.06.2019 19:10, Lewis5442

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

Answers: 1

continue

Mathematics, 21.06.2019 20:30, rafaelasoareschagas7

W-16=-12 solve each one step equation plz

Answers: 2

continue

Mathematics, 21.06.2019 22:30, natalievick03

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?

Answers: 2

continue

Do you know the correct answer?

A lumber company is making boards that are 2920.0 millimeters tall. If the boards are too long they...