T/F : A statistical test for normality applied to the residuals such as the Chi-square goodness...
T/F : A statistical test for normality applied to the residuals such as the Chi-square goodness of fit test is an appropriate way to check the validity of the assumption of normality of the observations in a designed experiment.
T/F: Cochran’s theorem establishes the independence of the mean squares on the right hand side of the ANOVA partitioning.
Homework Answers
(1) True, we can use the chi-squared goodness
of fit test to test for the normality of residuals.
(2) True, it tells us about the distributions of
the partitioned sum of squares on the right hand side of the ANOVA
partitioning and helps us to prove that the mean squares are
independent.
Add Answer to:
T/F : A statistical test for normality applied to the residuals
such as the Chi-square goodness...
Choices for each are wilcoxin signed, kruskal, sign, chi-square test of independence, wilconin ranked, spearman, friedman,...
Choices for each are wilcoxin signed, kruskal, sign, chi-square
test of independence, wilconin ranked, spearman, friedman, and chi
square goodness of fit
For each parametric test on the left hand side, select its appropriate non-parametric test from the drop down menu Completely Randomized ANOVA [ Choose ] Two Population Means Dependent t-test [Choose ] Two Population Means Independent t-test [ Choose ] Completely Randomized Block ANOVA [Choose ]
A chi-square test for goodness of fit is used to examine the distribution of individuals across...
A chi-square test for goodness of fit is used to examine the distribution of individuals across three categories, and a chi-square test for independence is used to examine the distribution of individuals in a 2×3 matrix of categories. Which test has the larger value for df? a. The test for independence b. Both tests have the same df . c. The df value depends on the sizes of the samples that are used. d. The test for goodness of fit
For the following experiment/question, pick the most appropriate statistical test. You have the following statistical tests...
For the following experiment/question, pick the most appropriate statistical test. You have the following statistical tests as choices: some may be used more than once, others not at all. Assume homogeneity of variance (where applicable) and the validity of parametric tests (where applicable), unless something is directly stated (e.g., “the data are not at all normal”) or otherwise indicated (viz., by the inspection of the data) which would indicate a strong and obvious violation of an assumption. This means you must...
Which of the statements are correct? A condition for using the chi-square goodness-of-fit test is that...
Which of the statements are correct? A condition for using the chi-square goodness-of-fit test is that all expected counts must be at least two. A condition for using the chi-square goodness-of-fit test is the observations are based on a random sample. The chi-square goodness-of-fit test uses n − 5 degrees of freedom. A) I only B) II only C) I and II only D) II and III only E) I, II, and III
Which step should be taken next if the null hypothesis is rejected in a chi-square test?...
Which step should be taken next if the null hypothesis is rejected in a chi-square test? OA. O B. Create confidence intervals to estimate the differences. Examine the standardized residuals to understand the pattern C. Check that the conditions are satisfied. D. Plot the data on a chart to understand the pattern. Which of the following is NOT one of the tests discussed in Chapter 16? A Chi-square test for independence B. Chi-square goodness-of-fit test OC. CH-square test for contingency...
-A chi-square test for goodness-of-fit has a sample size of 50. What are the degrees of...
-A chi-square test for goodness-of-fit has a sample size of 50. What are the degrees of freedom for this chi square? A. 25 B. The degrees of freedom cannot be determined from the information provided. C. 50 D. 49 -Rodney wants to test the relationship between college graduation rank and annual income. If income is measured on a ratio scale, the appropriate relationship test for Rodney to use is the: A. chi square test of independence B. independent-samples t test...
The number of degrees of freedom in a chi-square goodness of fit test depends upon: (1)...
The number of degrees of freedom in a chi-square goodness of fit test depends upon: (1) the number of classes into which the sample observations are classified; (2) the number of observations in the sample; (3) the number of population parameters estimated from the sample data. a. 1 only b. 2 only c. 1 and 2 only d. 1 and 3 only e. none of the above
The chi-square goodness of fit test can be used when: Select one: a. We conduct a...
The chi-square goodness of fit test can be used when: Select one: a. We conduct a multinomial experiment. b. We perform a hypothesis test to determine if a population has a normal distribution. c. We perform a hypothesis test to determine if two population variances significantly differ from each other. d. We conduct a binomial experiment. The x statistic from a contingency table with 6 rows and five columns will have Select one: a. 24 degrees of freedom b. 50...
Question 1 For Chi Square tests, all tests discussed can be used for both experiments and...
Question 1 For Chi Square tests, all tests discussed can be used for both experiments and surveys True False Question 2 Chi Square tests have an assumption of normality True False Question 3 For a Chi Square test of Association, you ask if mouse hair color (black, grey or white) is associated with whisker length (short, medium or long). The df for this analysis would be: Give answer as X Question 4 The value of X^2 can be negative, zero,...
psych experimental methods
A researcher is studying the average grade in PSY 468. Her null hypothesis is there is that the average grade is not different from 85%. The most appropriate test to analyze the results would be:Group of answer choicesa. A one-sample t-testb. An unpaired two-sample t-testc. A paired two-sample t-testd. A one-way ANOVAe. A repeated-measures ANOVAf. A two-way ANOVAg. A Pearson’s correlation testh. A chi square test for goodness of fiti. A chi square test for independence
Choices for each are wilcoxin signed, kruskal, sign, chi-square
test of independence, wilconin ranked, spearman, friedman, and chi
square goodness of fit
For each parametric test on the left hand side, select its appropriate non-parametric test from the drop down menu Completely Randomized ANOVA [ Choose ] Two Population Means Dependent t-test [Choose ] Two Population Means Independent t-test [ Choose ] Completely Randomized Block ANOVA [Choose ]
Which step should be taken next if the null hypothesis is rejected in a chi-square test? OA. O B. Create confidence intervals to estimate the differences. Examine the standardized residuals to understand the pattern C. Check that the conditions are satisfied. D. Plot the data on a chart to understand the pattern. Which of the following is NOT one of the tests discussed in Chapter 16? A Chi-square test for independence B. Chi-square goodness-of-fit test OC. CH-square test for contingency...
The chi-square goodness of fit test can be used when: Select one: a. We conduct a multinomial experiment. b. We perform a hypothesis test to determine if a population has a normal distribution. c. We perform a hypothesis test to determine if two population variances significantly differ from each other. d. We conduct a binomial experiment. The x statistic from a contingency table with 6 rows and five columns will have Select one: a. 24 degrees of freedom b. 50...
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