Answered: How many sources of between-group…

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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In question B where it has another drop down box the choices are: = > < Or unequal
You are interested in evaluating how well students perform on an attention test. There are two conditions (low noise & high noise) and to reduce your sample size, you have each subject participate in both conditions. Which stats test should you use to analyze the data? a. Paired-samples t test. b. Two-factor between-subjects ANOVA c. Chi-square Goodness of Fit d. Bivariate correlation
The weights of nine female students in kilograms are given as under;45, 47, 50, 52, 48, 47, 49, 53 and 51Does the mean of sample differ significantly from an assumed population mean of 47.5 Kgs? Use a significance level of 5%.
Q3. Paired sample t test can be used in an analysis involving pre-test and post-test data or in cross-over trials. YesB. NoC. None of the above
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You want to run an ANOVA looking at the effect of attending review sessions on students’ statistics grades. Which of the following would be included in the F-ratio for an independent-measures ANOVA but would not be included in the F-ratio for a repeated-measures ANOVA? a)Individual students’ baseline level of skill at statistics b)Between-groups variance c)The amount of benefit students receive from the review sessions d)Measurement error
Good Day , Please assit with the following question : John is interested in whether there is a relationship between gender and attitudes towards flogging children. He asked persons "Do you think that parents should be allowed to flog their children ?" The resulst are shown in the table below : Flogging Gender Yes No Not Sure Men 15 5 3 Women 20 10 7 Conduct a test , at 3% significance level , to determine whether gender and attitudes towards flogging were related. A) State the null and alternative hypotheses for this test . B) Create a table showing the expected frequencies if gender and flogging were independent (not related) C) What proportion of the expected frequencies are less than 5? How does this affect the validity of the test ? D) Given that the chi-square test statistic, X2 , is 0.7554, estimate the p-value for this test . E) State the conclusion for the test . Give reason for your answer . Thank you in advace and looking forward to hearing form…
Give an example of a study for which the one sample z-test would the appropriate test statistic to use.
A researcher is testing the effect of one independent variable using three treatment conditions. She compares three group means where there are different people in each group. It is best for her to use which type of statistical analysis?
4. How many determiners are part of the sample underlying the following statistical model? P(adj|det) = 0.2 P(noun adj) = 1 P(noun det) = 0.8 20 nouns 4 adjectives and ? determiners.
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
Anterior cruciate ligament (ACL) injuries occur most frequently in planting and cutting sports such as basketball, soccer, and volleyball. A sports medicine researcher wants to test if female athletes are more likely to have an ACL injury than males. He surveyed 50 collegiate programs that had both men’s and woman’s volleyball and asked them how many grade 3 ACL tears they had during the past season. Which statistical test would be best to determine if there is a significant difference between groups?

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How many sources of between-group variation are measured in a two-way between-subjects ANOVA? Group of answer choices a. 4 b. 2 c. 3 d. 5