What is the similarity between one-way ANOVA and a t-test?

Q: Describe the difference between a one-way ANOVA and a factorial ANOVA?

A: One-factor ANOVA model: In one factor ANOVA model only one factor is studied, that is only the…

Q: Why would we want to use three separate tests instead of ANOVA?

A: Why would we want to use three separate tests instead of ANOVA?

Q: Why should we perform an ANOVA rather than multiple t-tests when we have three or more levels of our…

A: Introduction: Suppose we wish to compare the means of k groups (k > 2).

Q: What is the alternative hypothesis for an Anova test?

A: An Anova test is used to test the relationship between a categorical and a numeric variable by…

Q: What is the difference between a one-tailed and two-tailed test within the context of significance…

A: A statistical hypothesis is a statement regarding the parameter of the population. Here using null…

Q: What is the best correlational test to use in SPSS for a research sample size of 39?

A: A correlation coefficient is a value that shows how closely two sets of measurements are related. It…

Q: Why is it NOT possible to calculate an ANOVA on the following hypothesis:  Males have a higher…

A: ANOVA can be used when outcome variable is numeric and independent variable must be categorical…

Q: An ANOVA  is used to evaluate the mean differences among three treatment conditions with a sample of…

A: It is given that the number of treatments, K is 3.Total number of observations is (12 x 3) = 36.

Q: A large value for chi-square tends to indicate a good fit between the sample data and the null…

A: We know that if the chi-square value is large than the critical value then it will not fit the…

Q: How is the analysis of variance (ANOVA) specifically the F-Test, a signal to noise ratio?

A: ANOVA is a study which is non parametric. ANOVA stands for "Variance Analysis" and is used to…

Q: What are the assumptions underlying the repeated-measures ANOVA

A: Repeated measures ANOVA:Repeated measures ANOVA is a belongs to the family of ANOVA. The repeated…

Q: What is the difference when calculating the Tukey’s post hoc test with a repeated-measures ANOVA as…

A: Repeated measures Anova is the extension of dependent t test for more than 2 groups. It is also…

Q: What is Analysis of Variance (ANOVA)?

A: ANOVA: The ANOVA (analysis of variance) is a test used for comparing the means of several…

Q: What are the OTHER TYPES OF ANOVA?

A: There are two types of ANOVA, One –way ANOVA and Two-way ANOVA.   ANOVA: The ANOVA (analysis of…

Q: Smaller p-values indicate more evidence in support of:

A:

Q: (a) Classic ANOVA vs GLIM in comparing population means. 1-2pages

A: Mathematically, they may have similar results. But their conceptual usage differs. In case of ANOVA,…

Q: Use a 0.01 significance level to test the claim that students taking an online exam get a higher…

A: Givenn2 = 30x2 = 75.2s2 = 11.9n1 = 34x1 =84.7s1 = 16.8

Q: What is the observed significance level for this test?

A: here given , n= 50  sample mean  =  19.4  sample standard deviation  =  3.1

Q: A researcher studying psychological well-being between those with depression, anxiety, or mood…

A: Dependent t-test: The dependent t-test, also known as the “paired t-test”, is a statistical…

Q: Make a table on similarities and differences between t-test, z-test and ANOVA. (at least 5-8…

A: The similarities and differences between t-test, Z-test and ANOVA is ,

Q: What is the Two-Factor ANOVA which is in one set of possible outcomes for the two-factor study?

A:

Q: In a One-way ANOVA, the "among group" variation is attributed to what source of variation?

A: In a one-way ANOVA, the total sum of squares consist of two sources of variation, one is between or…

Q: What is equation for STANDARDIZED EFFECT SIZE, COHEN’S d (ADAPTED FOR ANOVA)?

A: The rejection of a null hypothesis indicates that an effect is significant. The effect of a…

Q: What is a p-value and how is it used to make a decision about the null hypothesis? How is the…

A: 1. The p-value or the calculated probability can be defined as the probability of finding the…

Q: What is measured by the numerator of the z-score test statistic?

A: # What is measured by the numerator of the z-score test statistic?

Q: How do you calculate the sum of squares between subjects in an ANOVA without any mean or P values?

A: ANOVA: A one-way ANOVA is the most suitable for testing the equality of several means, provided the…

Q: What does One-Factor ANOVA tests?

A:

Q: How does a repeated-measures ANOVA differ from an independent ANOVA?

A: In independent ANOVA we have two or more groups which are independent from each other and then we…

Q: Explain why using an ANOVA naturally leads to the need to have post hoc tests

A: ANOVA is the generalization of the t-tests. We use the t-tests for checking the significant…

Q: Distinguish briefly the T-test and ANOVA

A: The testing of hypothesis can be done with the help of two tests: 1) Parametric tests. 2) Non…

Q: Explain In what sense does a two-factor ANOVA use observations more efficiently than one- factor…

A: Solution: One-Way ANOVA compares three or more levels of one factor. However, some experiments…

Q: Explain the Sources of variability for one-factor and repeated-measures ANOVA.

A:

Q: What is the expression for TUKEY’S HSD TEST (TWO-FACTOR ANOVA)?

A:

Q: State the four assumptions for one-way ANOVA, and explain how those assumptions can be checked.

A: Assumptions of one-way ANOVA: The all samples are drawn from the simple random sampling. The all…

Q: explain why two parameters are used in a two sample test

A: Here in the two parameters we take in two sample t-test because, we take samples from two…

Q: hat is the key difference between the independent and dependent/paired samples t-test?

A:

Q: Explain why you should use ANOVA instead of several t tests to evaluate mean differences (i.e.…

A: T-test is used to compare the means between two samples, but if there is more than 2 conditions in…

Q: What are the various formulas for degrees of freedom for repeated-measures ANOVA?

A: Degrees of freedom for repeated measures ANOVA: One way ANOVA: Degrees of freedom for total =N-1.…

Q: Explain why is it important to use ANOVA instead of several t tests to evaluate differences between…

A: Using several t -test, increase the type I error. In anova type I error is less as compare to t-test…

Q: What are some different types of analyses I could run on a independent sample t-test?

A: Independent sample t-test : It compares the means between two unrelated group in order to find…

Q: For what is two-way ANOVA used?

A:

Q: What does large sample sizes in ANOVA automatically inflates?

A: Effect sizes are the most important outcome of empirical studies. Researchers want to know whether…

Q: What is the difference between treatment variability and error variability in factorial Designs?

A: Let us consider the simplest factorial design --> 2 * 2 factorial design. Here, we have two…

Q: How do the Type I and Type II error rates of one-tailed and two-tailed tests differ?

A: Type I error: A type I error occurs when one rejects the null hypothesis when it is true. The…

Q: How do you calculate dfAxB for a two-factor ANOVA?

A: Consider a two-factor ANOVA model with factor A and factor B.

Q: When and why would you conduct an ANOVA rather than a t-test?

A: In the question basically, asked about differences between anova and t-test

Q: Could please help interpret this SPSS output of a Independent sample t-test?

A: Independent samples t-test is an inferential statistical procedure.

Q: Why is ANOVA more appropriate than multiple t-tests when comparing more than two groups?

A: The systematic methodology by which one can partition the cause of variation into several components…

Q: What is a practical example that would use ANOVA?

A: Analysis of variance (ANOVA) is a statistical technique used to check the significant difference…