ABC university claims that because of its superior facilities and close faculty supervision, its students complete the Ph.D program earlier than usual. They base this assertion on the fact that the population mean age for the for completion is u=32.11. Their n=31 Ph.D's have a mean age of M=30.89, with a standard deviation of s=4. Test the validity of this assertion using a two-tailed year with alpha set to =.05.

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
Topic Video
Question

ABC university claims that because of its superior facilities and close faculty supervision, its students complete the Ph.D program earlier than usual. They base this assertion on the fact that the population mean age for the for completion is u=32.11. Their n=31 Ph.D's have a mean age of M=30.89, with a standard deviation of s=4. Test the validity of this assertion using a two-tailed year with alpha set to =.05.

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 3 images

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
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,