11. An experiment is conducted to determine which shampo0: shampoo A or shampoo B works best toprevent dandruff. Sixtcen voluntecrs that are prone to dandruff labelcd as F20, F22, F22, F23, F46, F48,F48, F50, M21, M23, M24, M24, M45, M47, M47, M48, where Fstands for female, M stands for maleand the number is the age of the volunteer will be used in the experiment. It is suggested that a blockdesign, blocking by gender, be used. Why is a block design preferable to a completely randomized designfor this experiment?We should usc a block design because it creates groups that are foughly the cquivalentat the beginning of the experiment.We should use a block design because we must keep all other variables the sameexcept for the type of gender for the volunteers to prevent confounding.We should use a block design because it provides a baseline for comparing thedifferences in the dandruff between males and females.d.a.b.с.We should use a block design because it accounts for thc variability in dandruff due tothe differences between males and females.

We always use a block design experiment to nullify the effect of a variable which is not in our…

Answered: 11. An experiment is conducted to…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Determine what rule of replacement was used: ((~ O v P) V ~ Q) · (~ O V (Pv ~ Q)) .: (~ O v (PV ~ Q))· (~ 0 (Pv ~ Q)) A) Association (Assoc) B Commutation (Com) Distribution (Dist) D Exportation (Exp)
Total blood volume (In ml) per body welght (In kg) is Important In medical research. For healthy adults, the red blood cell volume mean is about u = 28 ml/kg.t Red blood cell volume that is too low or too high can Indicate a medical problem. Suppose that Roger has had seven blood tests, and the red blood cell volumes were as follows. 32 26 40 37 31 35 29 Let x be a random varlable that represents Roger's red blood cell volume. Assume that x has a normal distribution and o = 4.75. Do the data Indicate that Roger's red blood cell volume is different (either way) from u = 28 ml/kg? Use a 0.01 level of significance. (a) what is the level of significance? State the null and alternate hypotheses. Will you use a left-talled, nght-taled, or two-talled test? O Ho: H= 28 ml/kg; H: H> 28 ml/kg; right-tailed O Hg: H- 28 ml/kg; H: u = 28 ml/kg; two-taled O Ho: H- 28 m/kg; H: H 23 2$ backspace 1 4. 8 9.
Q 4: Mr. Ahmed who is a manager at PVR Multiplex Muscat has conducted a survey to investigate the number of people visited the theatre in the last 30 days. The number of people visited the theatre in the last 30 days are: 30, 36, 39, 37, 36, 54, 38, 33, 37, 33, 33, 36, 32, 48, 42, 38, 36, 35, 30, 33, 39, 37, 33, 36, 30, 39, 44, 32, 44 and 50. Find out the grouped frequency distribution using 5 classes. Which graph will be suitable to present the grouped frequency distribution? Give reasons to your answer Cumulative frequency and relative frequency are same. Discuss critically
The sum of 8 values is (21 X;) 234 and the sum of the squares of the observations is (2=1 xí) 7682 so what is the variance of these population (N=8). O A) 9.17 O B) 104,7 OC) 84.125 O D) 119,6429 OE) 119,6
We poll 250 people and find that 50% favor Candidate S. In order to estimate with 99% confidence what percent of ALL voters would vote for Candidate S, which calculator command should we use? O 2-SampTInt O ZInterval O TInterval O 2-PropZInt O1-PropZint 02-SampZInt
A fitness test is given to a group of people. The Z scores for a sample of five people are: Ted:-0.03,Carly:1.28,Shaquan:0.002,Cameron:-2.05,and Sarah:0.52 A) which of these people scored above the mean B) Rank the fitness levels of these people from least fit to most fit
OR on 21.8. Of 1,600 persons in a locality exposed to small- pox, 300 in all w'ere attacked. Of 1,600 persons 400 had been vacci- nated and of these only 30 were attacked. Can vaccination be re- garded as a preventive measure for small-pox?
Find the number of ways in which one A, three B’s, two C’s, and one F can be distributed among seven stu-dents taking a course in statistics.
B) Are males or females do a better job of detecting cheating? Justify your answer using conditions needed to justify your answer .
n a big university with over 10,000 students, 20% of all students work full time. A random sample of 100 students is selected from the university. Let X denote the number of students who work full time in the sample. b) Find ?(? = 20) c) Find ?(? ≤ 20) d) Find ?(? ≥ 20) Can you explain how you got them using work?
Teachers want to know which night each week their students are doing most of their homework. Most teachers think that students do homework equally throughout the week. Suppose a random sample of students were collected which shows that the Number of students doing their homework on SUN where 16 Number of students doing their homework on MON where 18 Number of students doing their homework on TUE where 12 Number of students doing their homework on WED where 18 Number of students doing their homework on THR where 8 Number of students doing their homework on FRI where 4 Number of students doing their homework on SAT where 3 What is the Test Statistics to test the Hull Hypothesis that students were doing their homework with equal frequencies (that is, they fit a uniform distribution) against the alternative Hypothesis that students prefer doing their homework on a particular day (that is, they do not fit a uniform distribution)?
please answer ONLY d through f. I submitted this question twice but someone keep answering a through c when i specified D through F. thanks!

SEE MORE QUESTIONS

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

SEE MORE TEXTBOOKS