subject
Mathematics, 10.04.2020 16:30 Shamasen1

A random sample is selected from a normal population with a mean of μ = 40 and a standard deviation of σ = 6. After a treatment is administered to the individuals in the sample, the sample mean is found to be M = 37.

a. If the sample consists of n = 36 scores, is the sample mean sufficient to conclude that the treatment has a significant effect? Use a two-tailed test with α = .05.
b. If the sample consists of n = 9 scores, is the sample mean sufficient to conclude that the treatment has a significant effect? Use a two-tailed test with α = .05?

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 17:40, kazmiere2005oye9tz
Afamily of five rents a kayak and splits the total time, k, equally. each family member spent less than 25 minutes kayaking. which values can be used to complete the math sentence below so that it accurately represents the situation? intro done
Answers: 2
image
Mathematics, 21.06.2019 18:50, khalfani0268
The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year
Answers: 3
image
Mathematics, 22.06.2019 01:30, jaydenrenee111902
Sole the equation 6n + 9 = -3n - 21 - 6 for n
Answers: 2
image
Mathematics, 22.06.2019 01:30, inucornspineapple
Solve for the equation. 4x - 13 = 2x + 9
Answers: 2
You know the right answer?
A random sample is selected from a normal population with a mean of μ = 40 and a standard deviation...

Questions in other subjects:

Konu
Mathematics, 10.01.2021 09:20
Konu
Mathematics, 10.01.2021 09:20