Consider a scenario where two vaccines have been developed and their effectiveness was tested by comparing the mean outcome for a vaccinated group to the mean for a control (placebo) group. Both of the vaccine studies set the significance (a) level for the test at .05, two-tailed, and both found statistically significant differences (i.e., the p-value was very small and Ho was rejected). The results were as follows: t-statistic Effect size (d) Study Vaccine 1 0.7 4.8
Consider a scenario where two vaccines have been developed and their effectiveness was tested by comparing the mean outcome for a vaccinated group to the mean for a control (placebo) group. Both of the vaccine studies set the significance (a) level for the test at .05, two-tailed, and both found statistically significant differences (i.e., the p-value was very small and Ho was rejected). The results were as follows: t-statistic Effect size (d) Study Vaccine 1 0.7 4.8
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
How would you explain question a in detail?
Transcribed Image Text:2. Consider a scenario where two vaccines have been developed and their effectiveness was tested by
comparing the mean outcome for a vaccinated group to the mean for a control (placebo) group. Both of
the vaccine studies set the significance (a) level for the test at .05, two-tailed, and both found statistically
significant differences (i.e., the p-value was very small and Ho was rejected). The results were as follows:
Study
Effect size (d)
t-statistic
Vaccine 1
0.7
4.8
Vaccine 2
0.2
4.8
(a) Based on the above information, can we know whether one study involved a larger sample size
than the other? If so, which one? Explain.
(b) Based on the above information, can we conclude that one vaccine is preferable to (i.e., more
effective than) the other? If so, which one? Explain.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Knowledge Booster
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.Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman