Which one of the following choices describes a problem for which an analysis of variance would be appropriate? O A. Comparing the proportion of successes for three different treatments of anxiety. Each treatment is tried on 100 patients O B. Analyzing the relationship between high school GPA and college GPA O C. Analyzing the relationship between gender and opinion about capital punishment (favor or oppose). O D. Comparing the mean birth weights of newborn babies for three different hospitals. O E. None of these

Which one of the following choices describes a problem for which an analysis of variance would be appropriate? O A. Comparing the proportion of successes for three different treatments of anxiety. Each treatment is tried on 100 patients O B. Analyzing the relationship between high school GPA and college GPA O C. Analyzing the relationship between gender and opinion about capital punishment (favor or oppose). O D. Comparing the mean birth weights of newborn babies for three different hospitals. O E. None of these

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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2. In studying the effect of a drug for treating patients with respiratory problems, a researcher obtained a sample of 12 consenting patients, who, after discussion with their doctor, chose a respiratory drug they would receive. Patients' respiratory tests were assessed twice over a two-month period after initiating the treatment. Research question: The researcher wants to know if there is a significant difference between the group in their second test and those that didn't take the drug in their overall mean of 3.35 in average respiratory scores with a standard deviation of .08. Is there a difference between the two means - does the drug work? Carry out 9 steps of hypothesis testing. Respiratory Test 2 3.4 3.4 3.3 3.4 3.3 3.3 3.3 3.2 3.2 3.2 3.2 3.3 Σ-39.5
Consider the following set of data:Suppose the test statistic turned out to be z = -1.20 (not the correct value). Find a two-tailed p-value for this test statistic. Select one: A. p-value = .6151 B. p-value = .3849 C. p-value = .2302 D. p-value = .1151
Which of the following statements is true about a factorial analysis of variance? A. The number of main effects will be equal to the number of interaction effects. B. The number of main effects will be equal to the number of independent variables plus the number of interaction effects. C. The number of main effects will be equal to the number of independent variables. D. The number of main effects will be equal to the number of independent variables minus the number of interaction effects.
One of the primary advantages of a repeated-measures design, compared to independent measures, is that it reduces the overall variability by removing variance caused by individual differences. The following data are from a research study comparing three treatment conditions: Treatment 1 Treatment 2 Treatment 3 P 6 9 12 27 8 8 8 24 5 7 9 21 0 4 8 12 2 3 4 9 3 5 7 15 M = 4 M = 6 M = 8 N = 18 T = 24 T = 36 T = 48 G = 108 SS = 42 SS = 28 SS = 34 SX2 = 800 A) Assume that the data are from an independent-measures study using three separate samples,…
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Q18. Why do we conduct post hoc analysis in ANOVA? a. To make a comparison on individual adjusted R-squares B. To make a comparison of the individual group meansC. To make a comparison of the individual group scatter plots D. None of the above
What is the variance for the following set of scores? 4, 4, 4, 4, 4 Lütfen birini seçin: A. 2 B. 5 C. 0 D. 4
If an analysis of variance is used for the following data, what would be the effect of changing the value of M2 to 20? Sample Data M1 = 10 M2 = 15 SS1 = 90 SS2 = 70 a. Increase SSbetween and increase the size of the F-ratio. b. Increase SSbetween and decrease the size of the F-ratio. c. Decrease SSbetween and increase the size of the F-ratio. d. Decrease SSbetween and decrease the size of the F-ratio.
Within-group variability reflects a. random, individual differences b. error variance c. pooled variance d. the effect of the independent variable
A researcher wanted to test whether there is a relationship between preferred sweet (Oreo cookies, Mars bars, or Twinkies) and age group (children, adolescents, or young adults). To test that, subjects from the three age groups were asked which of the three sweets they preferred. Which statistical test should be used to analyze the data? 1. chi square test of independece 2. chi square test for goodness of fit 3. one sample t test 4. one way anova test
The goal of analysis of variance (ANOVA) is toa. detect differences in treatment variances (or variances for different populations).b. detect differences in treatment means (or means for different populations).c. analyze the average variances for different populations.d. analyze the variances of the variances for different populations.
4 4G I. moodle.unizwa.edu.om a | Quiz3 Time left 0:00:21 Question 3 Answer saved Marked out of 2.00 P Flag question Which one of the following choices describes a problem for which an analysis of variance would be appropriate? O A. Comparing the proportion of successes for three different treatments of anxiety. Each treatment is tried on 100 patients O B. Analyzing the relationship between high school GPA and college GPA O . Analyzing the relationship between gender and opinion about capital punishment (favor or oppose). O D. Comparing the mean birth weights of newborn babies for three different hospitals. O E. None of these Clear my choice Previous page Next page 1 2w-ANOVA(3) Jump to... Quiz navigation 7 +