aim that the main systolic blood pressure for vegetarians is lower than the mean sy re for nonvegetarians. Also assumed that the population standard deviations are ed he standard error of the difference between means is obtained by pooling the samp nany populations? 1 2 s the parameter? Difference between Means

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
icon
Concept explainers
Topic Video
Question
A researcher wishes to determine whether the blood pressure of vegetarians is, on average, lower than the
blood pressure of nonvegetarians. Independent simple random samples of 85 vegetarians and 75
nonvegetarians were obtained and the size, mean and standard deviation of each group was recorded. Test
the claim that the main systolic blood pressure for vegetarians is lower than the mean systolic blood
pressure for nonvegetarians. Also assumed that the population standard deviations are equal(o,-02), so
that the standard error of the difference between means is obtained by pooling the sample variances.
How many populations?
01
O2
What is the parameter?
O Difference between Means
O Variance
O Proportion
О Мean
O Standard Deviation
Transcribed Image Text:A researcher wishes to determine whether the blood pressure of vegetarians is, on average, lower than the blood pressure of nonvegetarians. Independent simple random samples of 85 vegetarians and 75 nonvegetarians were obtained and the size, mean and standard deviation of each group was recorded. Test the claim that the main systolic blood pressure for vegetarians is lower than the mean systolic blood pressure for nonvegetarians. Also assumed that the population standard deviations are equal(o,-02), so that the standard error of the difference between means is obtained by pooling the sample variances. How many populations? 01 O2 What is the parameter? O Difference between Means O Variance O Proportion О Мean O Standard Deviation
What is the test statistic?
Ot =
(T1 – 72) – (41 – 42)
(î1 – 72) – (41 - 42)
Ot =
I - ld
O ta
Ox? =
(n – 1)² . s?
OF
(F1 – F2) – (41 – H2)
(ê1 – P2) – (Pi – p2)
||
Transcribed Image Text:What is the test statistic? Ot = (T1 – 72) – (41 – 42) (î1 – 72) – (41 - 42) Ot = I - ld O ta Ox? = (n – 1)² . s? OF (F1 – F2) – (41 – H2) (ê1 – P2) – (Pi – p2) ||
Expert Solution
steps

Step by step

Solved in 2 steps with 3 images

Blurred answer
Knowledge Booster
Centre, Spread, and Shape of a Distribution
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
  • 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