Question

My last question has gone hours without being answered, so I am submitting these again. Anyone who could help with these 10 questions would be MASSIVELY appreciated. Thank you!!

11. Find the y-intercept of the equation of the least-squares regression line for the dataset in the table. (1 poins x y 1 15 6 18 7 18 15 24 16 23 22 26 23 27 28 30 33 32 0.52 1.91 15.14 -23.91 12. For the data in the table, how many data points are in each group for the median-median line? xr 2.5 6 7.5 8 8 10 9 11 9 13 12 2 11.5 9 15 11 16 15 20 20 21.5 24 22.5 25 left: 4, center: 8, right: 4 left: 5, center: 5,right: 5 left. 5, center: 6, right: 5 left: 7, center: 2, right: 7 13. What is the slope of the median-median line for the dataset in this table? (1 point) 15 16 ::..。.m-2.5278 OMe-1 1333 m-1 3333 m84722 14. For the data in the table below, find the sum of the sbsolute deviations for the predicted values given by point the regression liney 05x+15 718 22 26 2.5 2.75 3.75 15. Find the three median.x-values that would form the summary points of the median-median line for the (l point) dataset in the table =25,z,-85,x, # 16.5 04=2,4°9,4°16.5 16. Construct a scatterplot and identify the mathematical model that best fits the data. Assume that 1 point the model is to be used only for the scope of the given data and consider only linear, quadratic, logarithmic, exponential, and power models. Use a calculator or computer to obtain the regression equation of the model that best fits the data. You may need to fit several models and compare the values of R2 x6 8 19 21 41 v16 19 130 153 521 y-477.38+237.66 Inx y11.46 e1107% y-109.41+14.59)x .5 , 589 6 6 8 8 6 7 1 2 3 8 9 17. IfS8 000 is invested at an annual interest rate of 1.83%, compounded daily, what will the investment be Ipo worth after 10 years? O S9,605.18 o $9,602.51 o $9,606.41 o $9,590.64 18. Construct a scatterplot and identify the mathematical model that best fits the data. Assume that (1 po the model is to be used only for the scope of the given data and consider only linear, quadratic, logarithmic, exponential, and power models. Use a calculator or computer to obtain the regression equation of the model that best fits the data. You may need to fit several models and compare the values of R2 x1 2 3 4 5 6 9 13 25 27 31 46 y 487 +18.5 Inx -o y = 8.34x0.88 :0 y 1.07 + 6.89x Oy#3.14 +6.53x 19. Find a recursive formula for the sequence: (4 point) 3. -5.11,-21 20. A collection of paired data consists of the number of years that students have studied Spanish and (ipoin their scores on a Spanish language proficiency test. A computer program was used to obtain the least squares linear regression line and the computer output is shown below. Along with the paired sample data, the program was also given an x value of 2 (years of study) to be used for predicting test score. Equation: y mx + b Statistics: 0.83 0.91 Parameters: M-10.90 b31.55 Answer the following questions based on the information given above. Use theinformation in the display to find the value of the linear correlation coefficientr. Determine level of 0.05.There are 10 pairs of data. ther there is significant linear correlation between years of study and teat acores. Use a significance r С.83, Ther is ro significant linear correlation r#0.92,There is no significant inear correlation r-O.S1, There is significant linear correlation. r. О.83; Ther tsigrificantii near correlation

Answer 1

Question 11

Using Minitab:

Using Excel scatter Plot:

15 17 18 18 20 24 23 26 27 30 30 6 35 y = 0.4931x + 15.238 R2-0.9769 15 30 16 25 23 28 20 15 10 0 0 10 15 20 25 30 35

As per the given data y-intercepts shows 15.24. In given option 15.14 may be correct option.

Please post remaining questions separately. Hope this will be helpful. Thanks and god Bless You :)