According to a research study, American teenagers watched 14.8 hours of television per week last year, on average. A random sample of 11 American teenagers was surveyed and the mean amount of time per week each teenager watched television was 15.6. This data has a sample standard deviation of2.5. (Assume that the scores are normally distributed.) Researchers conduct a one-mean hypothesis test at the 5% significance level, to test if the mean amount of time American teenagers watch television per week is greater than the mean amount of time last year. (a) Ho : μ-14.8; Ha : μ > 14.8, which is a right-tailed test. (b) to 1.06 c) Using the partial ttable below, determine the critical value(s). If there is only one critical value, leave the second answer box blank. df o.10 0.05 0.025 . 0.005 9 1.383 1.8332.2622.821 3.250 10 1.372 1.812 2.228 2.764 3.169 11 1.363 1.7962.201 2.7183.106 12 1.356 1.782 2.179 2.68 3.055 13 1.350 1771 2.160 2.650 3.012

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
Topic Video
Question

Provide your answer below: 

 

Critical value(s) = ___ and ____

According to a research study, American teenagers watched 14.8 hours of television per week last year, on average. A
random sample of 11 American teenagers was surveyed and the mean amount of time per week each teenager watched
television was 15.6. This data has a sample standard deviation of2.5. (Assume that the scores are normally distributed.)
Researchers conduct a one-mean hypothesis test at the 5% significance level, to test if the mean amount of time American
teenagers watch television per week is greater than the mean amount of time last year.
(a) Ho : μ-14.8; Ha : μ > 14.8, which is a right-tailed test.
(b) to 1.06
c) Using the partial ttable below, determine the critical value(s). If there is only one critical value, leave the second answer
box blank.
df o.10 0.05 0.025 . 0.005
9 1.383 1.8332.2622.821 3.250
10 1.372 1.812 2.228 2.764 3.169
11 1.363 1.7962.201 2.7183.106
12 1.356 1.782 2.179 2.68 3.055
13 1.350 1771 2.160 2.650 3.012
Transcribed Image Text:According to a research study, American teenagers watched 14.8 hours of television per week last year, on average. A random sample of 11 American teenagers was surveyed and the mean amount of time per week each teenager watched television was 15.6. This data has a sample standard deviation of2.5. (Assume that the scores are normally distributed.) Researchers conduct a one-mean hypothesis test at the 5% significance level, to test if the mean amount of time American teenagers watch television per week is greater than the mean amount of time last year. (a) Ho : μ-14.8; Ha : μ > 14.8, which is a right-tailed test. (b) to 1.06 c) Using the partial ttable below, determine the critical value(s). If there is only one critical value, leave the second answer box blank. df o.10 0.05 0.025 . 0.005 9 1.383 1.8332.2622.821 3.250 10 1.372 1.812 2.228 2.764 3.169 11 1.363 1.7962.201 2.7183.106 12 1.356 1.782 2.179 2.68 3.055 13 1.350 1771 2.160 2.650 3.012
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 1 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.
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