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How Much of the Variation in Bear Measurements Is Explained

Question 6
Multiple Choice

How much of the variation in bear measurements is explained by the model? A)2.22% B)96.9% C)94.6% D)20% E)61.9%

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Q 7
What does the coefficient of neck mean? A)For every measurement unit of the neck,all other measurements will increase by 28.594 units. B)For every measurement unit of the neck,the average head width will decrease by -11.24 units. C)For every measurement unit of the neck,the average weight will increase by 28.594 units. D)For every measurement unit of the neck,the average weight will increase by one unit. E)For every measurement unit of the neck,the average age will decrease by -1.3838 units.
Q 8
What is the regression equation? A)salary = 11.58 + 2.090 service + 2.844 education + 0.273 test score + 0.147 typing speed + 0.435 dictation speed B)salary = -6.5 + 1.49 service + 1.22 education - 0.18 test score + 0.24 typing speed - 0.14 dictation speed C)salary = 6.5 - 1.49 service - 1.22 education + 0.18 test score - 0.24 typing speed + 0.14 dictation speed D)salary = 11.58 - 2.090 service - 2.844 education - 0.273 test score - 0.147 typing speed - 0.435 dictation speed E)salary = -0.561 + 0.715 service + 0.429 education - 0.66 test score + 1.363 typing speed - 0.322 dictation speed
Q 9
From this model,what is the predicted salary of a secretary with 2.5 years (30 months)experience,10th grade education (10 years of education),an 80 on the standardized test,45 wpm typing speed,and the ability to take 30 wpm dictation? A)$47,371 B)$24,054 C)$75,431 D)$144,225 E)$42,600
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