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Elementor #26

MATH 217 Test 2 Version A

Name: KEY Sec Number: Answer all questions to the best of your ability. Note you should show as much work as is possible. For questions answered using Excel be sure to include the Excel ’code’ on your exam to ensure full credit. Complete credit will not be earned for just …

Elementor #13706

A man has nine shirts and seven ties. Assuming that they all​ match, how many different shirt​-and-tie combinations can he ​wear? The man has (9)(7) = 63 shirt and tie options.

4.3 Diagnostics on the Least-Squares Regression Line 1 of 1 Point

x y x y x y 3.6 8.9 3.1 8.9 2.8 8.9 8.3 15.0 9.4 15.0 8.1 15.0 0.5 4.8 1.2 4.8 3.0 4.8 1.4 6.0 1.0 6.0 8.3 6.0 8.2 14.9 9.0 14.9 8.2 14.9 5.9 11.9 5.0 11.9 1.4 11.9 4.3 9.8 3.4 9.8 1.0 9.8 8.3 15.0 …

Objective 1: Compute and Interpret the Coefficient of Determination

For data set A in the table​ below, what is the standard deviation of​ y? (b) For data set A in the table​ below, what is the variance of​ y? x,y,x,y,x,y 3.6,8.9,3.1,8.9,2.8,8.9 8.3,15.0,9.4,15.0,8.1,15.0 0.5,4.8,1.2,4.8,3.0,4.8 1.4,6.0,1.0,6.0,8.3,6.0 8.2,14.9,9.0,14.9,8.2,14.9 5.9,11.9,5.0,11.9,1.4,11.9 4.3,9.8,3.4,9.8,1.0,9.8 8.3,15.0,7.4,15.0,7.9,15.0 0.3,4.7,0.1,4.7,5.9,4.7 6.8,13.0,7.5,13.0,5.0,13.0 a) The standard deviation of y is 4.18 ​(Type an integer or decimal …

Objective 1: Compute and Interpret the Coefficient of Determination

Fill in the blanks. Total deviation=​_______ deviation+​_______ deviation Choose the correct answer below. A. Total deviation=positively associated deviation+negatively associated deviation B. Total deviation=predicted deviation+observed deviation C. Total deviation=unexplained deviation+explained deviation Your answer is correct. D. Total deviation=response deviation+explanatory deviation

4.3 Interactive Assignment

4.3 Diagnostics on the Least-Squares Regression Line The accompanying data represent the monthly rate of return of a certain​ company’s common stock for the past few years. Complete parts​ (a) and​ (b) below. 0.26 0.26 0.04 0.06 0.06 − 0.04 − 0.04 0.220.46 0.06 − 0.15 0.19 0.05 0.18 0.09 0.02− 0.05 − …