Mathematics
Mathematics, 27.02.2020 21:55, fionaaaa

The heights of 82 roller coasters have a mean of 280.7 feet and a population standard deviation of 59.3 feet. Find the standardized tests statistics and the corresponding p-value when the claim is that roller coasters are less than 290 feet tall. Group of answer choices

a. z-test statistic = -0.78, p-value = 0.2181
b. z-test statistic = 0.78, p-value = 0.2181
c. z-test statistic = 0.78, p-value = 0.4361
d. -test statistic = -0.78, p-value = 0.4361

answer
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 20.06.2019 18:04, cathydaves
The mean temperature for the first 4 days in january was 7°c. the mean temperature for the first 5 days in january was 5°c. what was the temperature on the 5th day?
Answers: 3
image
Mathematics, 21.06.2019 19:00, aceves5493
After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?
Answers: 2
image
Mathematics, 21.06.2019 20:30, Knelson566
What is 140% of 25? because i need
Answers: 2
image
Mathematics, 21.06.2019 22:00, pandyjunk3981
Let event a = you roll an even number on the first cube. let event b = you roll a 6 on the second cube. are the events independent or dependent? why?
Answers: 1
Do you know the correct answer?
The heights of 82 roller coasters have a mean of 280.7 feet and a population standard deviation of 5...

Questions in other subjects:

Konu
Mathematics, 15.04.2021 01:20
Konu
Chemistry, 15.04.2021 01:20