Analysis of Variance On the following random samples of social class, test the null hypothesis that neighborhood does not vary by social class (note: Higher scores indicate greater neighborliness). Lower Working Middle Upper 8 7 6 5 4 3 5 2 7 2 5 1 8 8 4 3

Analysis of Variance On the following random samples of social class, test the null hypothesis that neighborhood does not vary by social class (note: Higher scores indicate greater neighborliness). Lower Working Middle Upper 8 7 6 5 4 3 5 2 7 2 5 1 8 8 4 3

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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4 The percent moisture content in a puffed cereal where samples are taken from two different guns showed Gun-1 3.6 3.8 3.6 3.3 3.7 3.4 Gun-2 3.7 3.9 4.2 4.2 4.9 3.6 3.5 4.0 Test the hypothesis of equal variances.
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A study of seat belt yielded the randomly selected sample data summarized in the accompanying table. Use a 0.05 significance level to test the claim that the amount of smoking is independent of seat belt use. A plausible theory is that people who smoke dy are less concerned about their health and safety and are therefore less inclined to wear seat belts. Is this theory supported by the sample data? 5 sic Click the icon to view the data table. use. ..... Hа: Heavy Determine the test More info izlet. y of X-(Round to claim Number of Cigarettes Smoked per Day 15-34 Determine the P-v 1-14 35 and over le wh Wear Seat Belts 190 13 36 10 P-Value = (Rou Don't Wear Seat Belts 152 13 45 ww.nur y is that people ry supported by Use a 0.05 signific who smoke are les the sample data? nour seat Done theory is not zed in t Print O A. There is nd supported S Top eat belt. The O B. There is no theory is supportou Dy ao vampIG Gutu. O C. There is sufficient evidence to reject the claim that heavy smokers…
Julius has conducted a very small study of the amount of sleep his dorm mates get each night. He believes that those who are on one of the school’s sports teams will get more sleep (measured in hours per night) than those who are not. Julius surveyed 12 people. Of these, 6 played on a sports team and 6 did not. The descriptive statistics from his survey are given below. PLAYS SPORTS (Sample 1) DOES NOT PLAY SPORTS (Sample 2) 8 6 9 6 8 5 7 7 8 7 7 6 What is the critical value for this test? what is the t-obtain value for this t-test? Based on your t-obtained value, what should you conclude about the null hypothesis for this test?
Within-group variability reflects a. random, individual differences b. error variance c. pooled variance d. the effect of the independent variable
Second slide is the first part of the question and first slide is the second part of the question.
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A school psychologist is interested in whether or not teachers affect the anxiety scores among students taking the Statistics exam. The data below are the standardized anxiety test scores for students with the three different teachers. Teacher’s Name Ms. San Pedro Ms. San Juan Ms. San Jose 8 23 22 10 14 18 12 12 14 11 8 22 13 15 22 15 16 10 16 14 11 17 19 9 9 10 10 13 Perform an analysis of variance at the 0.05 level of significance.
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