%24design anu .LA researcher conducts an experiment comparing twocondition.a. If an independent-measures design is used, howmany subjects are needed for the experiment?b. If a repeated-measures design is used, how manysubjects are needed for the experiment?c. If a matched-subjects design is used, how manysubjects are needed for the experiment?4. A an twotreatment with 20 in each treatment

Statistical experimental design deals with design and analysis of the experiment. This is useful in…

Answered: design aiu - experiment comparing two…

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

answer multiple choice
Sigridur investigates whether the athletes who wear red show more aggression in badminton than those wearing other colors. She monitors 38 badminton games, notes the colours of the players clothing and assesses their aggression on a scale from 0 to 10. What is the main problem with the experimental design of her experiment? 1. It is not corrected for placebo effects. 2. There is a risk of sampling bias in the survey. 3. There is a risk of investigator bias in the survey. 4. Number of participants is small and therefore the hypothesis tests will have little power. 5. R-command
An independent-measures study uses ____. a. one group of participants to evaluate a hypothesis about one population mean b. a different group of participants for each of the treatment conditions being compared c. the same group of participants in all of the treatment conditions being compared d. one individual to study andestimate population parameters
An analysis of variance experiment produced a portion of the accompanying ANOVA table. (You may find it useful to reference the E table.) S Click here for the Excel Data File a. Specify the competing hypotheses in order to determine whether some differences exist between the population means. Hg: HA = HB = HC = HD; HA: Not all population means are equal. O Hg: HA 2 µB 2 µC 2 HD; HA: Not all population means are equal. O Hg: HA < pB < HC 3 HD; HA: Not all population means are equal. b. Fill in the missing statistics in the ANOVA table. (Round intermediate calculations to at least 4 decimal places. Round "MS" to 4 decimal places and "F" to 3 decimal places.) ANOVA Source of Variation df MS F p-value Between Groups 19.75 3 0.0028 Within Groups 94.86 74 Total 114.61 77 c. At the 1% significance level, what is the conclusion to the test? O Reject Ha, we can conclude that some means differ. O Do not rcicct He- wc cannot conclude that somo mcans differ
What is the importance of getting a sample from a population? When and why is it necessary?
Which of the following is an example of a two-way ANOVA test? Group of answer choices Comparing the number of hours that freshman and seniors study during a semester. Analyzing the number of hours that freshman, sophomores, juniors, and seniors study in a semester as well as the number of hours of sleep each group gets at night. Comparing the number of hours of sleep for freshman, sophomores, juniors, and seniors. Studying the number of hours of sleep for freshmen, sophomores, and juniors. All of the above are two-way ANOVA problems
PCB contamination of a river by a manufacturer is being measured by the amount of the pollutant found in fish. A company scientist claims that the fish contain only 5 parts per million, but an investigator believes the figure to be higher. A sample of 6 fish are collected and the PCB measured. Is there evidence at the 0.05 significance level that the investigator’s claim is correct? 6.8, 5.6, 5.2, 4.7, 6.3, 5.4
Four scenarios of statistical studies are given below. Decide which study uses a population parameter. Answer O Lakeside Family Dentistry reported that 6 of the 15 patients who came in for a regular cleaning one day had at least one cavity. O As part of her senior project, Kaisa asked 84 of her classmates if they voted in the last presidential election. 39 said yes. O of 351 dog owners who were surveyed, 70 reported owning two dogs. The average finish time for the Ironman, Kona was 11:32 for the 1883 finishers, with an average swim time of 1:14, an average bike time time of 4:14.
3. Dependent-samples t-test. A researcher wants to examine if play therapy can be an effective treatment for nightmares in children. Parents for a sample of 5-year-old children record each incident of a nightmare for 1 month before starting play therapy. After the start of play therapy, they continue to report each incident of a nightmare for another month. Do the data indicate a significant change in the number of nightmares? Test at the .05 level of significance Number of Nightmares 1 month during treatment 1 month before treatment 23 20 26 22 22 18 19 20 21 18 a. Conduct a complete hypothesis test b. Compute r? c. Give a full APA-style write up of your results
A power analysis is a calculation used to estimate the smallest sample size needed for an experiment, given a required significance level, statistical power, and effect size. It helps to determine if a result from an experiment or survey is due to chance, or if it is genuine and significant. Think of an experiment or a survey that you have conducted or will conduct in your field of interest and use it to discuss the following questions: 1. Describe the importance of power analysis in an experiment. 2. How will you determine the appropriate significance level for a power analysis? 3. Explain, in your own words, how you will conduct a power analysis in your experiment or survey.
What is the purpose statistical experiment? Provide an example.
HELP ASAP

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