QMB-3200: Business and Economic Statistics II SAMPLE QUIZ #3,100% CORRECT

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QMB-3200: Business and Economic Statistics II SAMPLE QUIZ #3 Instructions: Select the best possible answer 1. In the analysis of variance procedure (ANOVA), variable refers to a. the indepen... dent variable b. the dependent variable c. different levels of a treatment d. the critical value of F 2. The ANOVA procedure is a statistical approach for testing a. equality of means of two or more populations b. equality of variances of two or more populations c. equality of standard deviations of two or more populations d. none of the other three options is correct 3. The independent variable of interest in an ANOVA procedure is called a. a factor b. a treatment c. either a partition or a treatment d. a partition 4. In the ANOVA, factor levels are a. treatments b. experimental units c. the dependent variable d. the response 5. In factorial designs, the effects of the response produced at different levels of a factor is known as a. interaction b. replication c. main effect d. none of the other three alternatives is correct 6. In a single factor experimental design where the experimental units are randomly assigned to the treatments when heterogeneity of experimental units is not suspected is known as a. randomized block design b. random factor design c. factor block design d. none of the other three alternatives is correct 7. The repetition of experimental condition is known as a. replication b. partition c. experimental condition d. factor 8. In an analysis of variance problem involving 3 treatments and 5 observations per treatment, SSE = 120.0. The MSE for this situation is a. 10.0 b. 12.0 c. 8.0 d. 60.0 9. In an analysis of variance problem involving Completely Randomized Design, if SST = 20 and SSTR = 8, then SSE is a. 12 b. 28 c. 20 d. 8 10. The required condition for using an ANOVA procedure on data from several populations is that the a. sampled populations have equal means b. sampled populations are all uniform c. the selected samples are dependent on each other d. none of the other three options is correct 11. An ANOVA procedure is used for Completely Randomized Design data that was obtained from five sample groups each comprised of six observations. The degrees of freedom for the critical value of F are a. 4 and 29 b. 5 and 29 c. 4 and 25 d. 5 and 30 Turn the page over for the rest of the quiz ……. This study source was downloaded by 100000802531269 from CourseHero.com on 08-19-2022 12:47:35 GMT -05:00 12. An experimental design that permits statistical conclusions about one factor is a a. factorial design b. randomized block design c. completely randomized design d. either completely randomized design or randomized block design 13. An ANOVA procedure is used for Completely Randomized Design data obtained from two samples, each comprised of 10 observations. The numerator and denominator (respectively) degrees of freedom for the critical value of F are a. 2 and 19 b. 1 and 19 c. 1 and 18 d. 2 and 18 14. Which of the following is not a required assumption for the analysis of variance? a. Populations have equal means b. The variance associated with the response variable must be the same for all populations c. The observations must be independent d. The random variable of interest for each population has a normal probability distribution. 15. In an analysis of variance, one estimate of  is based upon the sum of squared deviations within the sample data and the a. overall mean b. sample means c. sum of observations d. populations have equal means [Show More]

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