What are the two types of variances which can occur in yourdata? ANOVA and ANCOVA/Experimenter and participant/Between andwithin group/Independent and confounding. What test statistic isused to test the hypothesis in ANOVA? Mann Whitney/Chi square/Rratios/F test (score). How many dependent variables must you havefor an ANOVA to be conducted? 3 ratio variables/2 nominalvariables/Only 1 continuous or interval scale variable/None ofthese. Which of the following assumptions must be met to use anANOVA? There is homogeneity of variance/Random sampling of casesmust have taken place/There is only one dependent variable/All ofthese. What must a Levene's test be in order to use an ANOVA?Significant at sig (p) < 0.001/Non-significant at or above sig(p) > 0.05/Significant at sig (p) < 0.01/Non-significant atsig (p) < 0.001. What two pieces of information on ANOVA outputwill help decide whether to reject (or failure to reject) the nullhypothesis? Descriptive statistics box/ The Sig. column and F-valuecolumn of the ANOVA table/The Sig. column of the Levene's test/TheSig. column of the multiple comparisons. What would you use todetermine whether significant differences were observed between anyor all levels of your independent variable? Box-plots/Fstatistic/Post-hoc tests/Histograms. What must you include whenreporting an ANOVA? P value/F statistic/Degrees of freedom/All ofthese. How many dependent variables are there in a two-way ANOVA?5/4/1/2. Analysis of variance is a statistical method of findingdifferences in ________ of several populations. standarddeviations/variances/means/proportions/none of the above. The________ sum of squares measures the variability due to individualdifferences, experimental error, and effect of treatment. BetweenGroups/Within group/Interaction/Total. Which of the following is anassumption of one-way ANOVA comparing samples from three or moreexperimental treatments? Dependent variable(s) is normallydistributed/The samples are randomly selected and are independentfrom all other samples/Groups have equal variances/All of theabove. As variability due to chance (SS within) decreases, thevalue of F will/Increase/stay the same/decrease/can't tell from thegiven information. If the group means were identical (yes, this isextremely unlikely), what would be the observed value of F-score?1.0/0.0/A value between 0.0 and 1.0 d. A negative value/Infinite. Amarketing manager wishes to test for differences in mean sales forthree stores during holiday season. The significance level for thetest will be 0.05. The null hypothesis for this analysis is: H0 =Not all store sales have the same mean./H0 = least one of the storesales has a different mean./Ho= Mean 1= Mean 2= Mean 3/None ofthese.
