If the sample has n = 18 scores, determine whether the sample is sufficient to conclude that the treatment has significant effect. Use a two tail test with a = 0.02. ( Assume the population is normally distributed)
If the sample has n = 18 scores, determine whether the sample is sufficient to conclude that the treatment has significant effect. Use a two tail test with a = 0.02. ( Assume the population is normally distributed)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Question
![A sample is selected from a population with A = 150. After a treatment is administered to the individuals, the sample mean is found
to be
= 140 and the standard deviation is S= 9.
If the sample has n = 18 scores, determine whether the sample is sufficient to conclude that the treatment has significant effect.
Use a two tail test with a = 0.02. (Assume the population is normally distributed)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3b0be5ad-1d63-489c-97ab-6c65620cd926%2Fcbb7c549-e162-4470-86ff-aa7e09868b3a%2Fr448oxh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A sample is selected from a population with A = 150. After a treatment is administered to the individuals, the sample mean is found
to be
= 140 and the standard deviation is S= 9.
If the sample has n = 18 scores, determine whether the sample is sufficient to conclude that the treatment has significant effect.
Use a two tail test with a = 0.02. (Assume the population is normally distributed)
![The alternative hypothesis ( Ha)
u = 150
* 140
µ = 140
# 150](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3b0be5ad-1d63-489c-97ab-6c65620cd926%2Fcbb7c549-e162-4470-86ff-aa7e09868b3a%2Fwnfno0r_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The alternative hypothesis ( Ha)
u = 150
* 140
µ = 140
# 150
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