Mathematics
Mathematics, 02.07.2020 01:01, Chantamariepaul

A national organization has been working with utilities throughout the nation to find sites for large wind machines that generate electricity. Wind speeds must average more than 19 miles per hour (mph) for a site to be acceptable. Recently, the organization conducted wind speed tests at a particular site. Based on a sample of 45 wind speed recordings (taken at random intervals), the wind speed at the site averaged 19.9 mph, with a sample standard deviation of 4.5 mph. To determine whether the site meets the organization's requirements, consider the test Ha: μ > 19, where μ is the true mean wind speed at the site. For a significance level of α = 0.01, do we reject the null hypothesis? Which of the following is an appropriate conclusion?

answer
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 22:40, alex43079
Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x
Answers: 3
image
Mathematics, 22.06.2019 00:40, Symonek
Ineed the question and choices are in the
Answers: 2
image
Mathematics, 22.06.2019 04:00, Realieeee15
Mrs. chibas is making chocolate chip cookies for her daughter's class. she bought a tub of chocolate chip cookie dough that contained 57.6 ounces of dough. if each cookie needs 1.2 ounces of dough, how many cookies can she make
Answers: 1
image
Mathematics, 22.06.2019 06:30, smagallanes
Which table shows a proportional relationship?
Answers: 1
Do you know the correct answer?
A national organization has been working with utilities throughout the nation to find sites for larg...

Questions in other subjects:

Konu
English, 07.02.2021 01:00
Konu
Mathematics, 07.02.2021 01:00
Konu
Mathematics, 07.02.2021 01:00
Konu
Mathematics, 07.02.2021 01:00