Which of the following are assumptions underlying independent-measures analysis of variance?
Which of the following are assumptions underlying independent-measures analysis of variance? Check all that apply.
Each of the populations of scores from which the samples are drawn has the same variance.
The populations from which the samples are taken follow an F distribution.
The observations are independent of one another.
The populations from which the samples are taken follow a binomial distribution.
Homework Answers
The correct assumptions for ANOVA are:
The population of scores should have same variance.
The observations are independent of one another.
Option A and Option C are correct.
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Which of the following are assumptions underlying independent-measures analysis of variance?
Which of the following are assumptions underlying repeated-measures ANOVA?
7. Assumptions underlying repeated-measures ANOVA Which of the following are assumptions underlying repeated-measures ANOVA? Check all that apply. The populations from which the samples were taken are normally distributed The population variances for each of the treatment groups (cells) differ.The population variances for each of the groups (cells) are equal. The values of the repeated variables are constant.
What are the assumptions regarding the sampled populations and the sampling methods in order to use...
What are the assumptions regarding the sampled populations and the sampling methods in order to use an analysis of variance? (Select all that apply.) The observations within each population are normally distributed Any assumptions about the sampling procedure that are specific to each type of design, The observations within each population are distributed with a common mean There are an equal number of observations in each of the samples. The observations within each population are uniformly distributed The observations within...
Aa Aa 1. In a repeated-measures analysis of variance... In a repeated-measures analysis of variance, how...
Aa Aa 1. In a repeated-measures analysis of variance... In a repeated-measures analysis of variance, how does the magnitude of the mean differences from one treatment to another contribute to the F-rata? The mean differences add to the numerator of the F-ratio. The mean differences add to both the numerator and the denominator of the Fratio. The mean differences add to the denominator of the F-ratio. The mean differences are subtracted from the numerator of the F-ratio.
Independent random samples of n1 = 900 and n2 = 780 observations were selected from binomial...
Independent random samples of n1 = 900 and n2 = 780 observations were selected from binomial populations 1 and 2, and x1 = 336 and x2 = 378 successes were observed. (a) Find a 90% confidence interval for the difference (p1 − p2) in the two population proportions. (Round your answers to three decimal places.) What assumptions must you make for the confidence interval to be valid? (Select all that apply.) 1. independent samples 2. random samples 3. n1 +...
Critics of CVP analysis claim that the assumptions underlying the analysis are almost certain to be...
Critics of CVP analysis claim that the assumptions underlying the analysis are almost certain to be violated in practice, thus severely limiting the practical value of the various techniques covered in this chapter. Moreover, say the critics, in the highly competitive environment in which many companies operate, the assumptions necessary for CVP analysis are even more likely to be violated. Arguably, companies that face stiff competition and thus could benefit most from CVP analysis may be the least likely to...
For the independent measures ttast, which of the following describes the estimated standard error of the...
For the independent measures ttast, which of the following describes the estimated standard error of the difference in sample means (whose symbolis )? The difference between the standard deviations of the two samples A weighted average of the two sample variances (weighted by the sample stres) An estimate of the standard distance between the difference in sample means (M. - Me) and the difference in the corresponding population means (Hi-Pa) The variance across all the data values when both samples...
Which of the following are assumptions underlying the use of most parametric tests (based on the...
Which of the following are assumptions underlying the use of most parametric tests (based on the normal distribution)? a. The data should be (at least) interval level. b. All of the above. c. The data should be normally distributed. d. The samples being tested should have approximately equal variances.
Question: 1 Part A: There are several assumptions that are made in the one-way ANOVA model....
Question: 1 Part A: There are several assumptions that are made in the one-way ANOVA model. Which one in the list is NOT one of the assumptions? a. The populations means are all equal if Ho is true. b. The variances within each treatment group are statistically equal. c. The mean of the observations, in at least one treatment group, is statistically significantly different from the mean of the observations in any one of the other treatment groups. d. All...
For the independent-measures t test, which of the following describes the estimated standard error of M1 - M2 (whose sy...
For the independent-measures t test, which of the following describes the estimated standard error of M1 - M2 (whose symbol is )? O The variance across all the data values when both samples are pooled together O A weighted average of the two sample variances (weighted by the sample sizes) O The difference between the standard deviations of the two samples O An estimate of the standard distance between the difference in sample means (M, - M2) and the difference...
Which of the following is not one of the assumptions underlying cost-volume-profit analysis? Select one: O...
Which of the following is not one of the assumptions underlying cost-volume-profit analysis? Select one: O A. Production equals sales. O B. All costs can be segregated into fixed and variable components. O C. The selling price increases or decreases with changes in sales volume. O D. Costs are linear.
What are the assumptions regarding the sampled populations and the sampling methods in order to use an analysis of variance? (Select all that apply.) The observations within each population are normally distributed Any assumptions about the sampling procedure that are specific to each type of design, The observations within each population are distributed with a common mean There are an equal number of observations in each of the samples. The observations within each population are uniformly distributed The observations within...
Aa Aa 1. In a repeated-measures analysis of variance... In a repeated-measures analysis of variance, how does the magnitude of the mean differences from one treatment to another contribute to the F-rata? The mean differences add to the numerator of the F-ratio. The mean differences add to both the numerator and the denominator of the Fratio. The mean differences add to the denominator of the F-ratio. The mean differences are subtracted from the numerator of the F-ratio.
For the independent measures ttast, which of the following describes the estimated standard error of the difference in sample means (whose symbolis )? The difference between the standard deviations of the two samples A weighted average of the two sample variances (weighted by the sample stres) An estimate of the standard distance between the difference in sample means (M. - Me) and the difference in the corresponding population means (Hi-Pa) The variance across all the data values when both samples...
For the independent-measures t test, which of the following describes the estimated standard error of M1 - M2 (whose symbol is )? O The variance across all the data values when both samples are pooled together O A weighted average of the two sample variances (weighted by the sample sizes) O The difference between the standard deviations of the two samples O An estimate of the standard distance between the difference in sample means (M, - M2) and the difference...
Which of the following is not one of the assumptions underlying cost-volume-profit analysis? Select one: O A. Production equals sales. O B. All costs can be segregated into fixed and variable components. O C. The selling price increases or decreases with changes in sales volume. O D. Costs are linear.
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