swer is incorrect. Can you help me determine th

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
100%

For part d, my answer is incorrect. Can you help me determine the correct inputs and why?

Suppose the mean IQ score of people in a certain country is 101. Suppose the director of a college obtains a simple random sample of 42 students from that country and finds the mean IQ is 104.4 with a standard deviation of
13.7. Complete parts (a) through (d) below.
**- -- - - T --------
0.256 (Round to three decimal places as needed.)
Write a conclusion for the test. Choose the correct answer below.
O A. Do not reject Ho. There is not sufficient evidence to conclude that the mean IQ score of people in the country is greater than 103 at the a = 0.01 level of significance.
O B. Do not reject Ho. There is sufficient evidence to conclude that the mean IQ score of people in the country is greater than 103 at the a= 0.01 level of significance.
O C. Reject Ho. There is sufficient evidence to conclude that the mean IQ score of people in the country is greater than 103 at the a= 0.01 level of significance.
O D. Reject Ho. There is not sufficient evidence to conclude that the mean IQ score of people in the country is greater than 103 at the a= 0.01 level of significance.
(d) Based on the results of parts (a)-(c), write a few sentences that explain the difference between "accepting" the statement in the null hypothesis versus "not rejecting" the statement in the null hypothesis.
One should
ассept
rather than not reject the null hypothesis. If one does not reject the null hypothesis, this indicates that the population mean is a specific value, such as 101, 102, or 103, and so the same data have
been used to conclude that the
sample mean
is three different values, If one
ассepts
the null hypothesis, this indicates that the
sample mean
could be 101, 102, or 103 or even some other value; we are simply
not ruling them out as the value of the population mean.
Therefore,
accepting the null hypothesis can lead to contradictory conclusions, whereas not rejecting does not.
Transcribed Image Text:Suppose the mean IQ score of people in a certain country is 101. Suppose the director of a college obtains a simple random sample of 42 students from that country and finds the mean IQ is 104.4 with a standard deviation of 13.7. Complete parts (a) through (d) below. **- -- - - T -------- 0.256 (Round to three decimal places as needed.) Write a conclusion for the test. Choose the correct answer below. O A. Do not reject Ho. There is not sufficient evidence to conclude that the mean IQ score of people in the country is greater than 103 at the a = 0.01 level of significance. O B. Do not reject Ho. There is sufficient evidence to conclude that the mean IQ score of people in the country is greater than 103 at the a= 0.01 level of significance. O C. Reject Ho. There is sufficient evidence to conclude that the mean IQ score of people in the country is greater than 103 at the a= 0.01 level of significance. O D. Reject Ho. There is not sufficient evidence to conclude that the mean IQ score of people in the country is greater than 103 at the a= 0.01 level of significance. (d) Based on the results of parts (a)-(c), write a few sentences that explain the difference between "accepting" the statement in the null hypothesis versus "not rejecting" the statement in the null hypothesis. One should ассept rather than not reject the null hypothesis. If one does not reject the null hypothesis, this indicates that the population mean is a specific value, such as 101, 102, or 103, and so the same data have been used to conclude that the sample mean is three different values, If one ассepts the null hypothesis, this indicates that the sample mean could be 101, 102, or 103 or even some other value; we are simply not ruling them out as the value of the population mean. Therefore, accepting the null hypothesis can lead to contradictory conclusions, whereas not rejecting does not.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Truth Tables
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