please write complete The true mean voltage drop from collector to emitter of insulated gate bipolar transistors of a certain type is supposed to be 3.9 volts. A researcher is worried the voltage drop is too high and plans to randomly select 15 transistors to test the hypotheses of interest. Assume the population standard deviation is 0.15 and the voltage drop is normally distributed. Assume that unknown to the researcher, the true mean voltage drop is 4.2 volts. a) What are the null and alternative hypotheses? b) How large of a sample is needed so that a 1% level test has power .85? c) For what values of should H, be rejected so that the power of the test is .90? What will the level then be?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
please write complete
The true mean voltage drop from collector to emitter of insulated gate bipolar transistors of a
certain type is supposed to be 3.9 volts. A researcher is worried the voltage drop is too high
and plans to randomly select 15 transistors to test the hypotheses of interest. Assume the
population standard deviation is 0.15 and the voltage drop is normally distributed. Assume
that unknown to the researcher, the true mean voltage drop is 4.2 volts.
a) What are the null and alternative hypotheses?
b) How large of a sample is needed so that a 1% level test has power .85?
c) For what values of should H, be rejected so that the power of the test is .90? What
will the level then be?
Transcribed Image Text:please write complete The true mean voltage drop from collector to emitter of insulated gate bipolar transistors of a certain type is supposed to be 3.9 volts. A researcher is worried the voltage drop is too high and plans to randomly select 15 transistors to test the hypotheses of interest. Assume the population standard deviation is 0.15 and the voltage drop is normally distributed. Assume that unknown to the researcher, the true mean voltage drop is 4.2 volts. a) What are the null and alternative hypotheses? b) How large of a sample is needed so that a 1% level test has power .85? c) For what values of should H, be rejected so that the power of the test is .90? What will the level then be?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman