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You wish to know whether American consumers and European consumers have different online purchasing habits. In particular, you want to know whether on the average amount of online purchases for American consumers is higher than that of the Europeans. The most appropriate statistical procedure to use to answer this question is: (Hint: identify and classify the variables in this study) a. One-way ANOVA b. Two-way ANOVA with Replication Chi-square Goodness of Fit Test d. Chi-square Test for Independence e. Regression and Correlation Analysis (Type the letter corresponding to you your answer in the box) Answer:Using a linear model; you Iilvant to estimate the actual value of the response variable [Y] for a given value of the independent variable {X}. Which of the two estimates is the correct interval estimate to use in estimating the true mean value of 1' given I? a. Condence interval b. Prediction interval c. Point estimate d. None of the above {Type the letter corresponding to you your answer in the box] In comparing the proportions of 4 independent samples, which of the following is the most appropriate distribution to use for testing the null hypothesis that the proportions are not all equal? 'E Chi-square b. Standard Normal Distribution C. t-distribution d. F-distribution 2. None of the above (Type the letter corresponding to you your answer in the box) AnswerYou wish to know whether a certain die used in a game is a fair die. The most appropriate statistical procedure to use to carry out the test is: [Hint: identify and classify the yaria bles in this study} a. Oneway ANDVA b. Two-way AN OVA With Replication c. Chi-square IGoodness of Fit Test d. IIEhisouare Test for Independence e. Regression and Correlation Analysis {Type the letter corresponding to you your answer in the box] In regression analysis, which of the following is described by the following definition? When X changes by one unit, the response variable, Y, will change, on average, by this amount a. The correlation coefficient (r) b. The coefficient of determination (r?) C. The y-intercept (a) d. The slope (b) e. The fitted y (Type the letter corresponding to you your answer in the box) AnswerRefer to the scatter plot below, which represents the relationship between unit price of a certain product and the quantity sold of the product each month on the product. {mun} Plus Miiuen'o Price of Product {Si Which of the following would be true for the regression resulting from the data in the plot? [Type the letter corresponding to you your answer in the box] a. R2 is moss b. R close to -'| c. s\" is [I d. All of the above would be true e. None of the above {a to c} would be true Refer to the scatter plot helo'luvr which represents. the relationship between unit price of a certain product and the quantity sold of the product each month on the product. Q ll 3 E. If] o_ o. E IE FF 1'2. Price of Product t It oomputed, the slope [DJ in the equation 1ilirould be: a. Either positive or negative b. Positive :3. Negative d. Close to 0 [Type the letter oorresponding to you your answer in the box} Refer to the scatter plot below, which represents the relationship between unit price of a certain product and the quantity sold of the product each month on the product. '2 III 3 E. In 0. El. E IE FF 2. Price of Product is} The dots in the plot represent: a. The actual Y and x values b. The residual values c. The predicted 'i' values given K d. The regression line e. None of the above Hype the letter corresponding to you your answer in the box] Refer to the scatter plot below, which represents the relationship between unit price of a certain product and the quantity sold of the product each month on the product. 2 I'll 3 1'". U1 o_ CI. E IE FF 12. Price of Product {S} It oomputed, the equation for the line going through the points would ta lce the form of: a. 'r' = a + bx b. Y = a - bx c. '1' = x 'I d. 'r' = a e. None ofthese is correct {Type the letter corresponding to you your answer in the box) Refer to the scatter plot below, which represents the relationship between unit price of a certain product and the quantity sold of the product ea ch month on the product. E' El 3 1". U1 o_ a. E 2! Fr" 1"."- Price of Product {S} In this particular problem, the researcher is trying to predict a. Units sold based on price of the product b. Price of the product based on quantity sold c. Both units sold and price of the product d. None of the above is correct Hype the letter corresponding to you your answer in the box]
