(a) Identify the null hypothesis and alternative hypothesis. O A. Ho: u>749 H us749 (claim) O B. H, µ#749(claim) OC. Ho u= 726 H, p= 749 H, u#726 (claim) O D. Ho us726 O E. Ho uz749 (claim) OF Ho: H<726 (claim) Ha p> 726 (claim) H, p<749 H p2 726

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
A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 749 hours. A random sample of 28 light bulbs has a mean life of 726 hours. Assume the population is normally distributed and the
population standard deviation is 57 hours. At a = 0.02, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e).
(a) Identify the null hypothesis and alternative hypothesis.
O A. Ho: µ>749
H3 ps749 (claim)
O B. Ho p 749(claim)
Ha p=749
O C. H: μ= 726
Ha: p#726 (claim)
0 D. H0 μ 5 726
O E. Ho p2749 (claim)
Ο Ε Ho μ< 726 (claim)
H3 p> 726 (claim)
H, p<749
H3: p2726
Transcribed Image Text:A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 749 hours. A random sample of 28 light bulbs has a mean life of 726 hours. Assume the population is normally distributed and the population standard deviation is 57 hours. At a = 0.02, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e). (a) Identify the null hypothesis and alternative hypothesis. O A. Ho: µ>749 H3 ps749 (claim) O B. Ho p 749(claim) Ha p=749 O C. H: μ= 726 Ha: p#726 (claim) 0 D. H0 μ 5 726 O E. Ho p2749 (claim) Ο Ε Ho μ< 726 (claim) H3 p> 726 (claim) H, p<749 H3: p2726
Expert Solution
Step 1

The hypothesized mean is 749.

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Statistical Power and Errors
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.
Similar 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