Homework Help is Here – Start Your Trial Now!
Math
Statistics
9. To evaluate the effect of a treatment, a sample is obtained from a population with a mean of pu = 30, and the treatment is administered to the individuals %3D in the sample. After treatment, the sample mean is found to be M = 31.3 with a standard deviation of s = 3.

9. To evaluate the effect of a treatment, a sample is obtained from a population with a mean of pu = 30, and the treatment is administered to the individuals %3D in the sample. After treatment, the sample mean is found to be M = 31.3 with a standard deviation of s = 3.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
See similar textbooks
icon
Related questions
Question
Remember, begin with a null statement about the independent variable ( ex: the treatment had no effect for a two tail or for a one tail, state direction, the supplement did not decrease..) Use equal and not equal signs for two tail and use greater than and less than signs for one tail.
Transcribed Image Text:Remember, begin with a null statement about the independent variable ( ex: the treatment had no effect for a two tail or for a one tail, state direction, the supplement did not decrease..) Use equal and not equal signs for two tail and use greater than and less than signs for one tail.
9. To evaluate the effect of a treatment, a sample is obtained from a population with a mean of µ = 30, and the treatment is administered to the individuals in the sample. After treatment, the sample mean is found to be M = 31.3 with a standard deviation of s = 3. a. If the sample consists of n = 16 individuals, are the data sufficient to conclude that the treatment has a significant effect using a two-tailed test with a = .05? b. If the sample consists of n = 36 individuals, are the data sufficient to conclude that the treatment has a significant effect using a two-tailed test with α=.05? c. Comparing your answer for parts a and b, how does the size of the sample influence the outcome of a hypothesis test?
Transcribed Image Text:9. To evaluate the effect of a treatment, a sample is obtained from a population with a mean of µ = 30, and the treatment is administered to the individuals in the sample. After treatment, the sample mean is found to be M = 31.3 with a standard deviation of s = 3. a. If the sample consists of n = 16 individuals, are the data sufficient to conclude that the treatment has a significant effect using a two-tailed test with a = .05? b. If the sample consists of n = 36 individuals, are the data sufficient to conclude that the treatment has a significant effect using a two-tailed test with α=.05? c. Comparing your answer for parts a and b, how does the size of the sample influence the outcome of a hypothesis test?
Expert Solution
Step 1

   Statistics homework question answer, step 1, image 1

steps

Step by step

Solved in 3 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS