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    21) Referring to Table 11-2, the within group mean squares is A) 0.0985. B) 0.2910. C) 1.0606. D) 1.1825. 22) Referring to Table 11-2, A) at the 0.05 level of significance, the mean ratios for the 4 neighborhoods are not all the same. B) at the 0.01 level of significance, the mean ratios for the 4 neighborhoods.
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    91) The Regression Sum of Squares (SSR) can never be greater than the Total Sum of Squares (SST).   92) The coefficient of determination represents the ratio of SSR to SST. 93) Regression analysis is used for prediction, while correlation analysis is used to measure the strength of the association between two numerical.
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    171) Referring to Table 13-11, the null hypothesis for testing whether there is a linear relationship between revenue and the number of downloads is "There is no linear relationship between revenue and the number of downloads." 172) Referring to Table 13-11, which of the following is the correct null hypothesis for.
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    41) Referring to Table 13-3, the director of cooperative education wanted to test the hypothesis that the population slope was equal to 0. The value of the test statistic is ________.   42) Referring to Table 13-3, the director of cooperative education wanted to test the hypothesis that the population slope was.
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    131) Referring to Table 12-13, the degrees of freedom of the test statistic are A) 1. B) 2. C) 4. D) 9.   132) Referring to Table 12-13, the test is always a one-tail test.   133) The McNemar test is used to determine whether there is evidence of a difference between the proportions of two related samples. 134).
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    131) Referring to Table 14-10, the standard error of the estimate is ________.   132) Referring to Table 14-10, the estimated mean change in insurance premiums for every 2 additional tickets received is ________.   133) Referring to Table 14-10, the 99% confidence interval for the change in mean insurance premiums of a person.
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11) A test for the difference between two proportions can be performed using the chi-square distribution.   12) A test for whether one proportion is higher than the other can be performed using the chi-square distribution.   TABLE 12-2   The dean of a college is interested in the proportion of graduates from his college who.
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  1) The Y-intercept (b0) represents the A) predicted value of Y when X = 0. B) change in estimated Y per unit change in X. C) predicted value of Y. D) variation around the sample regression line.   2) The Y-intercept (b0) represents the A) estimated average Y when X = 0. B) change in estimated average Y.
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    81) Referring to Table 13-5, the standard error of the estimated slope coefficient is ________.   82) Referring to Table 13-5, the correlation coefficient is ________.   83) Referring to Table 13-5, the partner wants to test for autocorrelation using the Durbin-Watson statistic. Using a level of significance of 0.05, the critical values of.
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    71) Referring to Table 12-7, the test will involve ________ degrees of freedom.   72) Referring to Table 12-7, the expected cell frequency for the Hong Kong/Yes cell is ________. 73) Referring to Table 12-7, the expected cell frequency for the Paris/No cell is ________.   74) Referring to Table 12-7, the critical value of.
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    31) Referring to Table 12-4, the calculated value of the test statistic is A) -0.1777. B) -0.0185. C) 1.4999. D) 1.5190.   32) Referring to Table 12-4, at 1% level of significance A) there is sufficient evidence to conclude that the proportions of errors in transactions assigned to each of the 5 memory locations are all different. B).
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    51) Referring to Table 13-4, the total sum of squares (SST) is ________. 52) Referring to Table 13-4, the regression sum of squares (SSR) is ________.   53) Referring to Table 13-4, the error or residual sum of squares (SSE) is ________.   54) Referring to Table 13-4, the coefficient of determination is ________.   55) Referring.
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    31) Referring to Table 11-3, the among group variation or SSA is ________.   32) Referring to Table 11-3, the within group variation or SSW is ________.   33) Referring to Table 11-3, the value of MSA is ________, while MSW is ________.   34) Referring to Table 11-3, the null hypothesis that the mean downhill.
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    121) Referring to Table 13-8, the value of the measured test statistic to test whether there is any linear relationship between GPA and ACT is A) 0.0356. B) 0.1021. C) 0.7598. D) 2.8633. 122) Referring to Table 13-8, what is the predicted value of GPA when ACT = 20? A) 2.61 B) 2.66 C) 2.80 D) 3.12   123) Referring to.
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    1) In a multiple regression problem involving two independent variables, if b1 is computed to be +2.0, it means that A) the relationship between X1 and Y is significant. B) the estimated mean of Y increases by 2 units for each increase of 1 unit of X1, holding X2 constant. C) the estimated.
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    11) Referring to Table 13-2, what is the coefficient of correlation for these data? A) -0.8854 B) -0.7839 C) 0.7839 D) 0.8854 12) Referring to Table 13-2, what is the percentage of the total variation in candy bar sales explained by the regression model? A) 100% B) 88.54% C) 78.39% D) 48.19%   13) Referring to Table 13-2, what percentage of.
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    151) Referring to Table 12-16, what type of test should be performed? A) Lower-tail test B) Upper-tail test C) Two-tail test D) None of the above   152) Referring to Table 12-16, what are the lower and upper critical values of the test when allowing for 5% probability of committing a type I error?   153) Referring to.
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    141) Referring to Table 14-10, to test the significance of the multiple regression model, the null hypothesis should be rejected while allowing for 1% probability of committing a type I error.   142) Referring to Table 14-10, the multiple regression model is significant at a 10% level of significance. 143) If a categorical.
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    71) Referring to Table 11-4, using an overall level of significance of 0.01, the critical range for the Tukey-Kramer procedure is ________.   72) Referring to Table 11-4, based on the Tukey-Kramer procedure with an overall level of significance of 0.01, the agronomist would decide that there is a significant difference between.
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    51) Referring to Table 12-5, there is sufficient evidence to conclude that the proportions between procedure B and procedure D are different at a 0.05 level of significance.   52) Referring to Table 12-5, what is the value of the critical range for the Marascuilo procedure to test for the difference in.
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    131) Referring to Table 13-9, to test the claim that SALARY depends positively on HOURS against the null hypothesis that SALARY does not depend linearly on HOURS, the p-value of the test statistic is A) (5.944E-18)/2. B) 5.944E-18. C) (2.051E-05)/2. D) 2.051E-05.   132) A zero population correlation coefficient between a pair of random variables means.
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    121) Referring to Table 12-12, suppose we want to constrain the probability of committing a Type I error to 5% when testing whether there is any relationship between average time spent watching TV and average time spent reading storybooks, the critical value will be A) 5.991. B) 7.378. C) 12.592. D) 14.449.   122) Referring to.
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    161) Referring to table 13-11, which of the following is the correct interpretation for the slope coefficient? A) For each decrease of 1 thousand downloads, the expected revenue is estimated to increase by $ 3.7297 thousands. B) For each increase of 1 thousand downloads, the expected revenue is estimated to increase by.
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    31) Referring to Table 13-3, the standard error of estimate is ________.   32) Referring to Table 13-3, the coefficient of correlation is ________.   33) Referring to Table 13-3, suppose the director of cooperative education wants to construct a 95% confidence-interval estimate for the mean number of job offers received by students who.
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    61) Referring to Table 12-6, what is the critical value?   62) Referring to Table 12-6, what is the p-value of the test statistic?   63) Referring to Table 12-6, the null hypothesis cannot be rejected. 64) Referring to Table 12-6, what is the correct conclusion? A) There is enough evidence that the proportions are all.
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    51) Referring to Table 11-3, what is the value of the test statistic for Levene's test for homogeneity of variances?   52) Referring to Table 11-3, what are the numerator and denominator degrees of freedom for Levene's test for homogeneity of variances respectively?   53) Referring to Table 11-3, what is the critical value.
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    161) Which of the following is a "robust" test procedure against the violation of distribution assumptions? A) X2-test of independence B) McNemar test for the difference between two proportions C) X2-test for the differences among more than two proportions D) Wilcoxon rank sum test for difference in medians   162) A local real estate appraiser analyzed.
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21) Referring to Table 12-3, the overall or mean proportion of local riders is ________.   22) Referring to Table 12-3, the expected cell frequency in the Male/Local cell is ________.   23) Referring to Table 12-3, the expected cell frequency in the Female/Non-Local cell is ________. 24) Referring to Table 12-3, the critical value.
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