A researcher wished to demonstrate the effectiveness of a new drug in enhancing memory in nursing home residents. The average memory score for residents before the treatment is 11.9, with a standard deviation of 3.2. The researcher anticipates that after the program the average memory score will be around 13.5. (a) What is the effect size (d)? (b} What is the numeric value of the noncentrality parameter with a sample of 167 (C) What is the statistical effect (delta) with a sample of 167 (d) How much power did the researcher have with a sample of 167 (e) How many people would he need to obtain power - 85? (use whole numbers) () What would power be if the standard deviation was 4.5 for the sample af 16? Possible answers for Blank_1: A) 0.9 B) 0,1 C) 0.5 D)0 Possible answers for Blank ?

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 researcher wished to demonstrate the effectiveness of a new drug in enhancing memory in nursing home residents. The average memory score for residents before
the treatment is 11.9, with a standard deviation of 3.2. The researcher anticipates that after the program the average memory score will be around 13.5.
(a) What is the effect size (d)?
(b) What is the numeric value of the noncentrality parameter with a sample of 16?
(C) What is the statistical effect (delta) with a sample of 16?
(d) How much power did the researcher have with a sample of 167
(e) How many people would he need to obtain power - .85?
(use whole numbers)
() What would power be if the standard deviation was 4.5 for the sample of 16?
Possible answers for Blank_1:
A) 0.9
B) 0.1
C) 0.5
D)0
Possible answers for Blank 2
A13
B) 2
C) 1
D) S
Possible answers for Blank 3:
A) 3
B) 2
C) 1
D) 5
Possible answers for Blank_4:
A) 0.52
B) 0.10
C) 1.10
D) 2.52
Possible answers for Blank_5:
A) 30
B) 36
cj 40
D) 46
Possible answers for Blank_6:
A) 0.29
B) 1.29
C) 2.29
D) 3.29
Transcribed Image Text:A researcher wished to demonstrate the effectiveness of a new drug in enhancing memory in nursing home residents. The average memory score for residents before the treatment is 11.9, with a standard deviation of 3.2. The researcher anticipates that after the program the average memory score will be around 13.5. (a) What is the effect size (d)? (b) What is the numeric value of the noncentrality parameter with a sample of 16? (C) What is the statistical effect (delta) with a sample of 16? (d) How much power did the researcher have with a sample of 167 (e) How many people would he need to obtain power - .85? (use whole numbers) () What would power be if the standard deviation was 4.5 for the sample of 16? Possible answers for Blank_1: A) 0.9 B) 0.1 C) 0.5 D)0 Possible answers for Blank 2 A13 B) 2 C) 1 D) S Possible answers for Blank 3: A) 3 B) 2 C) 1 D) 5 Possible answers for Blank_4: A) 0.52 B) 0.10 C) 1.10 D) 2.52 Possible answers for Blank_5: A) 30 B) 36 cj 40 D) 46 Possible answers for Blank_6: A) 0.29 B) 1.29 C) 2.29 D) 3.29
Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
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