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Question;61. You are given the following data;set: 2;5 9 13 27. Which of the following statements is true?;a. There are no;outliers;b. Only 27 is an;outlier;c. 2 and 27 are;outliers;d. 13 and 27 are;outliers;e. None of the above are true statements;62. The following ages are those of 15;people interviewed at the Ster-Kinekor movie theatres in Canal Walk shopping;centre: 12, 14, 15, 19, 19, 21, 27, 31, 32, 46, 53, 56, 57, 58, 59. What is the inter-quartile range?;a. 54.5;b. 19;c. 22;d. 35.5;e. 59;63.;The following values are the number of ice-creams sold by an ice-cream vendor;on campus per day over a two-week period (the values have been sorted): 13, 14;17, 17, 24, 26, 28, 29, 29, 31, 32, 38, 45, 57.;The interquartile range is given by;a.;11;b. 15;c. 7;d. 32;e. 59;64.;The following values are the number of ice-creams sold by an ice-cream vendor;on campus per day over a two-week period (the values have been sorted): 13, 14;17, 17, 24, 26, 28, 29, 29, 31, 32, 38, 45, 57.;Which of the following statements is true?;a. There are no outliers;b. 13 and 57 are both outliers;c. only 13 is an outlier;d. only 57 is an outlier;e. None of the above are true statements;65.;The following values are the number of people buying laptop computers from a;particular electronics shop per day over a two-week period (the values have;been sorted): 13, 14, 17, 17, 24, 26, 28, 29, 29, 31, 32, 38, 45, 57. The interquartile range is given by;a.;11;b. 15;c. 7;d. 32;e. 57;66.;The following values are the number of people buying laptop computers from a;particular electronics shop per day over a two-week period (the values have;been sorted): 13, 14, 17, 17, 24, 26, 28, 29, 29, 31, 32, 38, 45, 57. Which of the following statements is true?;a. There are no outliers;b. 13 and 57 are both outliers;c. only 13 is an outlier;d. only 57 is an outlier;e. None of the above are true statements;67. Given the;following data set: 3, 6, 8, 10, 12, 19, what is the inter-quartile range?;a. 6;b. 9;c. 12;d. 21;e. 5;68.;You are given the following data set;15, 12, 11, 13, 10, 23, 16, 18, 11, 8. Find the values of the lower;quartile, median, upper quartile and inter-quartile range respectively.;a.;(11, 12.5, 16, 5);b.;(11, 13, 17, 6);c.;(11, 12, 16, 5);d.;(11, 12.5, 18, 7);e. None of the above;69.;You are given the following data set;15, 12, 11, 14, 10, 23, 17, 18, 11, 8. Find the values of the lower;quartile, median, upper quartile and inter-quartile range respectively.;a.;(11, 12.5, 16, 5);b.;(11, 13, 17, 6);c.;(11, 12, 16, 5);d.;(11, 12.5, 18, 7);e. None of the above;70.;You are given the following data set;15, 12, 11, 12, 10, 23, 16, 18, 11, 8. Find the values of the lower;quartile, median, upper quartile and inter-quartile range respectively.;a.;(11, 12.5, 16, 5);b.;(11, 13, 17, 6);c.;(11, 12, 16, 5);d.;(11, 12.5, 18, 7);e. None of the above;71.;You are given the following data set;15, 12, 11, 13, 10, 23, 19, 18, 11, 8. Find the values of the lower;quartile, median, upper quartile and inter-quartile range respectively.;a.;(11, 12.5, 16, 5);b.;(11, 13, 17, 6);c.;(11, 12, 16, 5);d.;(11, 12.5, 18, 7);e. None of the above;72.;You have been given the following calculated values for a set of data;containing x and y values: ?x = 46,?y = 76,?xy = 473,?x2 = 284,?y2 = 794 and n = 8. What is the value of the sample correlation;coefficient between x and y?;a.;0.961;b.;0.965;c.;0.992;d.;0.934;e.;1.000;73.;You have been given the following calculated values for a set of data;containing x and y values: ?x = 45,?y = 76,?xy = 473,?x2 = 284,?y2 = 794 and n = 8. What is the value of the sample correlation;coefficient between x and y?;a.;0.961;b.;0.965;c.;0.992;d.;0.934;e.;1.000;74.;You have been given the following calculated values for a set of data;containing x and y values: ?x = 46,?y = 75,?xy = 473,?x2 = 284,?y2 = 794 and n = 8. What is the value of the sample correlation;coefficient between x and y?;a.;0.961;b.;0.965;c.;0.992;d.;0.934;e.;1.000;75.;You have been given the following calculated values for a set of data;containing x and y values: ?x = 46,?y = 76,?xy = 472,?x2 = 284,?y2 = 794 and n = 8. What is the value of the sample correlation;coefficient between x and y?;a.;0.961;b.;0.965;c.;0.992;d.;0.934;e.;1.000;76. The marketing manager of a large supermarket chain;would like to determine the effect of shelf space (X) on the sales (Y);of pet food. A random sample of 12;equal-sized stores is selected. Some;calculations have been done for you: SSx = 375, SSy =;3.0025 and SSxy = 27.75. What;is the value of the sample correlation coefficient?;a. 0.83;b. 0.81;c. 0.80;d. 0.89;e.;1.00;77. The marketing manager of a large supermarket chain;would like to determine the effect of shelf space (X) on the sales (Y);of pet food. A random sample of 12;equal-sized stores is selected. Some;calculations have been done for you: SSx = 400, SSy =;3.0025 and SSxy = 28. What is;the value of the sample correlation coefficient?;a. 0.83;b. 0.81;c. 0.80;d. 0.89;e.;1.00;78. The marketing manager of a large supermarket chain;would like to determine the effect of shelf space (X) on the sales (Y);of pet food. A random sample of 12;equal-sized stores is selected. Some;calculations have been done for you: SSx = 375, SSy = 3.5;and SSxy = 29. What is the;value of the sample correlation coefficient?;a. 0.83;b. 0.81;c. 0.80;d. 0.89;e.;1.00;79. The marketing manager of a large supermarket chain;would like to determine the effect of shelf space (X) on the sales (Y);of pet food. A random sample of 12;equal-sized stores is selected. Some;calculations have been done for you: SSx = 375, SSy =;3.0025 and SSxy = 30. What is;the value of the sample correlation coefficient?;a. 0.83;b. 0.81;c. 0.80;d. 0.89;e.;1.00;80.;A statistician wishes to examine the relationship between average monthly;rainfall (in mm), x, and number of road accidents, y, in a particular;city. The following calculations have;been done for you:?x = 276,?x2 = 6982,?y = 193,?y2 = 3421,?xy = 4842 and n = 12. The coefficient of correlation between;average monthly rainfall and number of road accidents is;a.;0.899;b.;0.969;c.;0.974;d.;0.977;e.;1.000

 

Paper#62449 | Written in 18-Jul-2015

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