1) While rejecting a null hypothesis on a t-test, what is the purpose of calculating Cohen’s...
1) While rejecting a null hypothesis on a t-test, what is the purpose of calculating Cohen’s d? What is the purpose of calculating eta squared and omega squared?
2) What factor differentiates a one way ANOVA from a two way ANOVA?
3) If I ran an ANOVA with sample 1 having a mean of 5, sample 2 having a mean of 9 and sample 3 having a mean of 10. According to post-hoc comparisons, which means would be different with a q critical value of 3?
Homework Answers
1. The purpose of calculating Cohen’s d is to estimate the effect size of the study. The purpose of calculating eta squared and omega squared is also to estimate the effect size of the study
2. There are replications in two way ANOVA that's missing in one way ANOVA.
3. We cannot calculate the HSD value since the value of MSE is not given. Hence, we cannot perform post-hoc comparisons.
Add Answer to:
1) While rejecting a null hypothesis on a t-test, what is the
purpose of calculating Cohen’s...
If I ran an ANOVA with sample 1 having a mean of 5, sample 2 having...
If I ran an ANOVA with sample 1 having a mean of 5, sample 2 having a mean of 9 and sample 3 having a mean of 10. According to post-hoc comparisons, which means would be different with a q critical value of 3?
In a one-way ANOVA, what does it mean to reject the statement in the null hypothesis...
In a one-way ANOVA, what does it mean to reject the statement in the null hypothesis if three treatment groups are being compared? Choose the correct answer below. A. Rejecting the statement in the null hypothesis means that there is insufficient evidence to conclude that the mean of one of the populations is different than the other two or that all three populations are different. B. Rejecting the statement in the null hypothesis means that there is sufficient evidence to...
13) Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e.,...
13) Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e., describe the values of the test statistic that would result in rejection of the null hypothesis. Suppose you wish to test the claim that μd, the mean value of the differences d for a population of paired data, is greater than 0. Given a sample of n = 15 and a significance level of α = 0.01, what criterion would be used for rejecting...
Question 3 1 pts What is the meaning of the P-value provided by a one-way ANOVA?...
Question 3 1 pts What is the meaning of the P-value provided by a one-way ANOVA? How likely that a mistake is made by rejecting a true null hypothesis If you reject the null hypothesis, there is a 5% chance that you're making an incorrect decision The probability that the observed test-statistic would occur by chance if the null hypothesis is true The probability that there is a difference between the sample means Question 4 1 pts What are the...
Question 1: True or False (2 points each) a) ANOVA tests the null hypothesis that the...
Question 1: True or False (2 points each) a) ANOVA tests the null hypothesis that the sample means are all equal. b) A strong case for causation is made in an observational study. c) In rejecting the null-hypothesis, one can conclude that all the means are different from each other d) One-way ANOVA can be used only when there are fewer than five means to be compared. e) The null hypothesis for the Levene’s test for homogeneity of variance is...
1. Fisher LSD: What is the statement that corresponds to rejecting and failing to reject the...
1. Fisher LSD: What is the statement that corresponds to rejecting and failing to reject the null hypothesis? 2. Tukey HSD: What is the statement that corresponds to rejecting and failing to reject the null hypothesis? 3. Kruskal-Wallis: What is the statement that corresponds to rejecting or failing to reject the null hypothesis? 4. Two-way ANOVA: What is the statement that corresponds to rejecting or failing to reject the null hypothesis?
statistics help 7) Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test ie, describe the values of the test statistic that would result in rejection of t...
statistics help
7) Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test ie, describe the values of the test statistic that would result in rejection of the null hypothesis Suppose you wish to test the claim that the mean value of the differences d for a population of paired data, is greater than 0. Given a sample of n-15 and a significance level of a-001, what criterion would be used for rejecting the null hypothesis...
1. In hypothesis testing, the hypothesis that is assumed to be true for the purpose of...
1. In hypothesis testing, the hypothesis that is assumed to be true for the purpose of testing is called the hypothesis 2. (Circle the correct response) In hypothesis testing, critical values used to make a rejection decision regarding the null hypothesis are determined by the nature of the hypothesis test (two-tail vs. one-tail) and the d. significance level a. sample size b. population parameter c. target value 3. (Circle the correct response) In the process of hypothesis testing, the test...
In one tailed T-test, if the test statistics is
Question 2In one tailed T-test, if the test statistics is \(\mathrm{t}\) and \(\mathrm{t}_{0}\) is the t-value under null hypothesis, then \(\mathrm{p}\) -value \(=\operatorname{Pr}\left(\mathrm{t}<\mathrm{t}_{0} \mid\right.\) null hypothesis is true) if \(\mathrm{t}_{0}>0\) and p-value \(=\operatorname{Pr}\left(t>t_{0} \mid\right.\) null hypothesis is true) if \(t_{0}<0\).Question 3In a recent twin study from researchers at King's College London, the researchers wanted to first test whether identical twins show statistically significantly different thigh muscular power. To test this, they recruited 20 identical female twins. For this analysis,one-way ANOVA...
Question 1 For ANOVA: the null hypothesis is: Mu1 = Mu2 = Mu3......etc True False Question...
Question 1 For ANOVA: the null hypothesis is: Mu1 = Mu2 = Mu3......etc True False Question 2 For ANOVA: the alternative hypothesis is: Mu1 ≠Mu2 ≠Mu3......etc. True False Question 3 Both ANOVA and Chi square tests are always right tail tests True False Question 4 For ANOVA, you only complete a Tukey's means comparisons test if the overall F* value was significant (i.e., p<0.05) True False Question 5 Both F and Chi Square distributions vary with df True False Question...
Question 3 1 pts What is the meaning of the P-value provided by a one-way ANOVA? How likely that a mistake is made by rejecting a true null hypothesis If you reject the null hypothesis, there is a 5% chance that you're making an incorrect decision The probability that the observed test-statistic would occur by chance if the null hypothesis is true The probability that there is a difference between the sample means Question 4 1 pts What are the...
statistics help
7) Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test ie, describe the values of the test statistic that would result in rejection of the null hypothesis Suppose you wish to test the claim that the mean value of the differences d for a population of paired data, is greater than 0. Given a sample of n-15 and a significance level of a-001, what criterion would be used for rejecting the null hypothesis...
1. In hypothesis testing, the hypothesis that is assumed to be true for the purpose of testing is called the hypothesis 2. (Circle the correct response) In hypothesis testing, critical values used to make a rejection decision regarding the null hypothesis are determined by the nature of the hypothesis test (two-tail vs. one-tail) and the d. significance level a. sample size b. population parameter c. target value 3. (Circle the correct response) In the process of hypothesis testing, the test...
Question 2In one tailed T-test, if the test statistics is \(\mathrm{t}\) and \(\mathrm{t}_{0}\) is the t-value under null hypothesis, then \(\mathrm{p}\) -value \(=\operatorname{Pr}\left(\mathrm{t}<\mathrm{t}_{0} \mid\right.\) null hypothesis is true) if \(\mathrm{t}_{0}>0\) and p-value \(=\operatorname{Pr}\left(t>t_{0} \mid\right.\) null hypothesis is true) if \(t_{0}<0\).Question 3In a recent twin study from researchers at King's College London, the researchers wanted to first test whether identical twins show statistically significantly different thigh muscular power. To test this, they recruited 20 identical female twins. For this analysis,one-way ANOVA...
Most questions answered within 3 hours.
-
The blues made its way into many kinds of music. Eric Clapton,
The Beatles, and Elvis...
asked 5 minutes ago -
If you’re standing at the bottom of a hill and asked to evaluate
it while being...
asked 1 hour ago -
1. Which region has taken the lead in the world of
e-waste handling?
a) European Union...
asked 54 minutes ago -
A 8.15- g bullet from a 9-mm pistol has a velocity of 366.0 m/s.
It strikes...
asked 2 hours ago -
The outstanding bonds of Alpha Extracts have a yield to maturity
of 7.4 percent and a...
asked 2 hours ago -
The Problem: The Case of the Harmonizing Vacations
Your CEO is exploring partnering with a European...
asked 3 hours ago -
A chemical equation is balanced by adding coefficients in front
of some formulas so that the...
asked 3 hours ago -
From the literature (reference your sources): What are the
lattice parameters of calcite and aragonite? Why...
asked 4 hours ago -
Your system is rejecting the question am asking which is
preceded by a case study. It...
asked 4 hours ago -
3. On January 2, 2000, Larry creates a trust with himself as
trustee. Larry as trustee...
asked 4 hours ago -
A member of the volleyball team spikes the ball. During this
process, she changes the velocity...
asked 4 hours ago -
Are adult gamers less likely to use a gaming console (Xbox,
PlayStation, Wii, etc...) than teen...
asked 5 hours ago