1. If the variance is known, the sample is 800, and the level of significance is 0.01, what is the critical value if one tailed-test will be used? 2. If the variance is unknown and the sample is 15, what is the critical value if one-tailed test willI be used at 0.01 significance level? 3. If the variance is unknown, the sample is 27, at 0.10 significance level, what is the critical value if two-tailed test will be used?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
icon
Related questions
Question
Please answer the given question. Thank you
1. If the variance is known, the sample is 800, and the
level of significance is 0.01, what is the critical value if
one tailed-test will be used?
2. If the variance is unknown and the sample is 15, what
is the critical value if one-tailed test willI be used at 0.01
significance level?
3. If the variance is unknown, the sample is 27, at 0.10
significance level, what is the critical value if two-tailed
test will be used?
Transcribed Image Text:1. If the variance is known, the sample is 800, and the level of significance is 0.01, what is the critical value if one tailed-test will be used? 2. If the variance is unknown and the sample is 15, what is the critical value if one-tailed test willI be used at 0.01 significance level? 3. If the variance is unknown, the sample is 27, at 0.10 significance level, what is the critical value if two-tailed test will be used?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Recommended textbooks for you
Calculus For The Life Sciences
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,