QUESTION 5An experiment consists of classifying five students for Vitamin D status (Sufficient, Insufficient, Deficient, Severly Deficient) successively. The number of outcomes in thisexperiment isO 625O 20O 4O 1024

Let, an experiment consists of classifying five students for Vitamin D status (Sufficient,…

Answered: QUESTION 5 An experiment consists of…

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

Research results indicate that physically attractive people are also perceived as being more intelligent (Eagly, Ashmore, Makhijani, & Longo, 1991). Asa demonstration of this phenomenon, a researcher obtained a set of 10 photographs, 5 showing men who were judged to be attractive and 5 showing men who were judged to be unattractive. The photographs were shown to a sample of n 5 25 college students and the students were asked to rate the intelligence of the person in the photo on a scale from 1 to 10. For each student, the researcher determined the average rating for the 5 attractive photos and the average for the 5 unattractive photos, and then computed the difference between the two scores. For the entire sample, the average difference was MD 5 2.7 (attractive photos rated higher) with s 5 2.00. Are the data sufficient to conclude that there was a significant difference in perceived intelligence for the two sets of photos? Use a two-tailed test with a 5 .05.
Example 13.11 Two hundred bolts were selected at random from the output of each of the five ma- chines. The numbers of defective bolts found were 4, 8, 12, 6 and 5. Is there a significant difference among the machines? Use 0.05 level of significance.
A CBS News poll involved a nationwide random sample of 651 adults, asked those adults about their party affiliation (Democrat, Republican or none) and their opinion of how the US economy was changing ("getting better," "getting worse" or "about the same"). The results are shown in the table below. better same worse Republican 38 104 44 Democrat 12 87 137 none 21 90 118 If we randomly select one of the adults who participated in this study, compute the following probabilities. (round to four decimal places) a. PP (affiliated with neither party) == b. PP (better) == c. PP (better|affiliated with neither party) == d. PP (affiliated with neither party|better) == e. PP (affiliated with neither party and better) ==
According to a report, 62.5% of murders are committed with a firearm. (a) If 100 murders are randomly selected, how many would we expect to be committed with a firearm? (b) Would it be unusual to observe 68 murders by firearm in a random sample of 100 murders? Why? ..... (a) We would expect to be committed with a firearm. (b) Choose the correct answer below. A. No, because 68 is between u - 20 and u + 20. B. No, because 68 is greater than u + 20. O C. Yes, because 68 is between u - 20 and + 20. D. Yes, because 68 is greater than u + 20. O E. No, because 68 is less than u - 20.
In a large clinical trial, 390,341 children were randomly assigned to two groups. The treatment group consisted of 196,902 children given a vaccine for a certain disease, and 28 of those children developed the disease. The other 193,439 children were given a placebo, and 89 of those children developed the disease. Consider the vaccine treatment group to be the first sample. Identify the values of n,, p1, 91, n2. P2, 92, P, and q. n, = (Type an integer or a decimal rounded to eight decimal places as needed.) (Type an integer or a decimal rounded to eight decimal places as needed.) n2
10
Does artistic ability determine which type of operating system a person prefers? Suppose that a market research company randomly selected n = 259 adults who used a desktop or laptop outside of the workplace (tablets and smartphones were excluded). The subjects were asked to identify the operating system of the desktop or laptop they used the most. The operating systems were classified as Windows, Mac OS, and Linux. There were no other operating systems reported in the survey. The subjects were administered a test for creative imagery ability (TCIA), and based on the results, were classified as being exceptionally artistic or not. Exceptionally artistic was defined as being above the third quartile (the top 25 percent) of all people who took the TCIA. The table contains the results of the study. Windows Mac OS Linux Total Exceptional 46 53 Not exceptional 182 14 10 206 Total 228 18 13 259 If you wish, you may download the data in your preferred format. CrunchIt! CSV Excel JMP Mac Text…
A fraternity at a university lobbies Start a hockey team 9.76 the administration to start a hockey team. To bolster its case, it reports that of a simple random sample of 100 students, 83% support starting the team. Upon further investigation, their sample has 80 males and 20 females. be skeptical of whether the sample was ran- Should you dom if you know that 55% of the student body popula- tion was male? Answer this by performing all steps of a two-sided significance test.
9
A sleep researcher experiments to determine whether sleep loss affects maintaining sustained attention. Fifteen individuals are randomly divided into the following three groups of five subjects each: group 1, which gets the average amount of sleep (7-8 hours); group 2, which is sleep deprived for 24 hours; group 3, which is sleep deprived for 48 hours. All three groups are tested on the same auditory vigilance task. Subjects are presented with half-second tones spaced at irregular intervals over a 1-hour duration. Occasionally, one of the tones is slightly shorter than the rest. The subject’s task is to detect the shorter tones. The following data is obtained from the SPSS Output. What can you conclude based on the results? Does a multiple comparison test necessary for this study? Why or why not?
55

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

QUESTION 5 An experiment consists of classifying five students for Vitamin experiment is O 625 status (Sufficient, Insufficient, Deficient, Severly Deficient) successively. The number e outcomes in this O 20 O 4 O 1024