Why is it not appropriate to run multiple t-tests instead of an ANOVA? An Fobt over...

Why is it not appropriate to run multiple t-tests instead of an ANOVA?

An F_obt over what number indicates there is an effect of the independent variable?

Expert Solution

orchestra answered 2 years ago

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

2) If you perform several, separate t-tests instead of conducting a one-way ANOVA, you are: a)...

2) If you perform several, separate t-tests instead of conducting a one-way ANOVA, you are: a) Likely to increase the probability of making a Type I error b) Unlikely to increase or decrease the probability of making a Type II error c) Likely to increase the probability of making a Type II error d) Likely to decrease the probability of making a Type I error e) None of the above .

In your own words, describe why it wouldn’t be best to run multiple independent-sample t-tests when...

In your own words, describe why it wouldn’t be best to run multiple independent-sample t-tests when you have 3 or more groups. Come up with a sample experiment where you would use a between-subjects one-way ANOVA. Come up with a sample experiment where you would use a within-subjects one-way ANOVA. Why do we run post hoc tests? Under what conditions should you run a post hoc test?

Why would you use ANOVA when you could just run many sets of t-tests? [Think about...

Why would you use ANOVA when you could just run many sets of t-tests? [Think about practical considerations, as well as statistical considerations.]

1. Why is using a single ANOVA preferable to running a series of independent t tests?...

1. Why is using a single ANOVA preferable to running a series of independent t tests? 2 Determine the null and alternate hypotheses for the following statement: People will eat more when their food is served on red plates than when it is served on blue or beige plates.

Explain how the chi-square tests differ from parametric tests (such as t tests or ANOVA) with...

Explain how the chi-square tests differ from parametric tests (such as t tests or ANOVA) with respect to the hypotheses, the data, and the assumptions underlying the test.

Why is it necessary to adjust alpha (α) when preforming multiple F-tests following ANOVA to identify...

Why is it necessary to adjust alpha (α) when preforming multiple F-tests following ANOVA to identify where the differences lie?

a. Re-run the data using ANOVA on Excel. You may choose which ANOVA is most appropriate....

a. Re-run the data using ANOVA on Excel. You may choose which ANOVA is most appropriate. b. Show the Excel ANOVA output and describe what the output means. Month Chevy Cruze Ford Focus Hyundai Elantra Honda Civic Toyota Corolla VW Jetta January 21,711 21,303 21,006 19,341 20,985 19,671 February 18,274 19,385 19,992 20,872 19,785 19,105 March 17,934 16,557 15,713 17,181 16,889 16,006 April 19,387 17,420 15,054 14,500 14,093 14,083 May 17,097 16,147 15,023 15,800 15,727 16,875 June 16,244 16,173 14,295...

When would it be appropriate to use the following statistical tests?/ One-way ANOVA and a Two-way...

When would it be appropriate to use the following statistical tests?/ One-way ANOVA and a Two-way ANOVA

What is the difference between t-tests and ANOVA versus regression (one big difference)? Explain it as...

What is the difference between t-tests and ANOVA versus regression (one big difference)? Explain it as if you were teaching someone. How many groups are you allowed to have in an independent samples t-test? How many groups are you allowed to have in an one-way ANOVA? What are some of the advantages of Multiple Regression? How is regression with a single variable the same and different from a correlation?

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