both please (a) minimizes the mean difference between the residuals squared (b)

Question

both please

(a) minimizes the mean difference between the residuals squared (b) maximizes the mean difference between the residuals squared. (c) minimizes the sum of the residuals squared. (d) maximizes the sum of the residuals squared. mimof the resíduals squared. 11. An educator wants to see if there is a relationship between the daily temperature and 0449x-30.27. Determine the residual of a data point for which x y 10. 90 and ture, x 10 1015 15 (e) None of these 14 (c) -7.895 (d) -10.14 12. The initial visual impact of a scatter diagram depends on the scales used on the r and axes ( see the data below). The regression line for the this data is 09429x + 12. Compute the sum of the squared residuals of the least squared regression line for the given data below. 14 63 67 (a) 15.6 (b) 9.943 (c) 60.8 (d) 71.3 13. Which of the following random variable are discrete, and which are continuous? (a) The number of songs on an MP3 player (b) The time it takes a student selected at random to register for the fall term. (c) The number of bad checks drawn on a PNC Bank on a day selected at random. (d) The amount of gasoline needed to drive your car 200 miles rl Pick a random sample of 50 registered voters in a district and find the number 5 5

Explanation / Answer

11) predicted value =0.449*90-30.27 =10.14

hence residual =actual-predicted =10-10.14 =-0.14

option E is correct

12)

option B

13)

a,c and e are discete and b,d are continuous

residual et=(y-?hat) e2t -1.1429 1.31 0.9143 0.84 1.9714 3.89 -1.9714 3.89 0.0857 0.01 0.1429 0.02 0.0000 total 9.94

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.