Consider the following data for a dependent variable y and two independent variables, 1 and 22; for these data SST =SSR = 13,909.Round your answers to three decimal places.a. Compute R².b. Compute RZ130462450415175366076Z₂121018165197121316Y9510911217894175171118143211= 15,046.4, andc. Does the estimated regression equation explain a large amount of the variability in the data?Yes

From the given information n= no.of observation = 10 P = no.explanetory variables = 2 Formula used…

Answered: Consider the following data for a…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter4: Polynomial And Rational Functions

Section4.6: Variation

Problem 2E

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Find the mean hourly cost when the cell phone described above is used for 240 minutes.
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A sociologist wants to determine if the life expectancy of people in Africa is less than the life expectancy of people in Asia. The data obtained is shown in the table below. Africa Asia = 63.3 yr. 1 X,=65.2 yr. 2 o, = 9.1 yr. = 7.3 yr. n1 = 120 = 150
If the coefficient of determination between two independent variables is 0.33, what is the VIF? VIF= (Round to three decimal places as needed.)
Complete the following worksheet and then use it to calculate the coefficient of determination. (ŷ; - y)² (Yi - y)² 2.208 196.000 565.203 2,116.000 432.765 1,156.000 79.477 256.000 797.046 2,916.000 178.837 196.000 973.690 676.000 1,856.834 576.000 2,121.800 1,296.000 35.331 256.000 i 1 2 3 4 5 6 7 8 9 Ti Yi y 15 160 175.486 13.5 220 197.774 16.5 140 153.197 14.5 190 182.915 17 120 145.768 16 160 160.627 13 200 205.204 18 150 130.909 12 210 220.063 10 15.5 190 168.056 Total The coefficient of determination (²) is According to the regression model, which of the following is the best estimate together with the 95 percent prediction interval of paint sales (in thousands of gallons) in a sales region where the selling price is $12.50? O 212.620 + 2(3.190) O 409.370 + 2(3.190) O212.620 2(18.017) O 409.370 = 2(18.017) What is the price elasticity of demand at a selling price of $12.50? O -0.56 -0.06 O -0.87
The following are the cystatin C levels (mg/L) for the patients described in Exercise 15 (A-17).Cystatin C is a cationic basic protein that was investigated for its relationship to GFR levels. In addition, creatinine levels are also given. (Note: Some subjects were measured more thanonce.) Cystatin C (mg/L) Creatinine (mmol/L) 1.78 4.69 0.35 0.14 2.16 3.78 0.30 0.11 1.82 2.24 0.20 0.09 1.86 4.93 0.17 0.12 1.75 2.71 0.15 0.07 1.83 1.76 0.13 0.12 2.49 2.62 0.14 0.11 1.69 2.61 0.12 0.07 1.85 3.65 0.24 0.10 1.76 2.36 0.16 0.13 1.25 3.25 0.17 0.09 1.50 2.01 0.11 0.12 2.06 2.51 0.12 0.06 2.34Source: D. M. Z. Krieser, M.D. Used with permission.(a) For each variable, compute the mean, median, variance, standard deviation, and coefficient ofvariation.(b) For each variable, construct a stem-and-leaf display and a box-and-whisker plot.(c) Which set of measurements is more variable, cystatin C or creatinine? On what do you baseyour answer? that question from…
Complete the following worksheet and then use it to calculate the coefficient of determination. (ŷ; - y)² (Yi - y)² 8.618 12.721 8.618 20.854 3.903 6.588 3.903 9.404 1.032 16.538 1.032 6.588 0.003 0.004 0.003 2.054 0.818 5.921 0.818 0.871 7.977 11.788 7.977 5.921 22.509 24.338 22.509 29.521 23.577 0.321 Ti Yi ŷ 50 20 19.369 50 21 19.369 55 19 18.409 55 19.5 18.409 60 20.5 17.449 60 19 17.449 65 16.5 16.489 8 65 15 16.489 9 70 14 15.529 10 70 15.5 15.529 11 80 13 13.609 12 80 14 13.609 13 90 11.5 11.689 14 90 11 11.689 15 40 17 21.289 i 1 2 3 4 5 6 7 The coefficient of determination (²) is -0.46 -0.02 Total What is the price elasticity of demand at a price of 50 cents? 0.03 113.297 -0.51 153.432
I. Complete the table below.Show your complete solutions below and write your answers on the blank provided C.I fX X-X |(X-X)² f(X-X)² X2 d' fd (d')? f(d')2 54 - 56 51 - 53 48 - 50 45 - 47 42 - 44 39 - 41 36 - 38 33 - 35 30 - 32 27 - 29 24 - 26 21 - 23 1 1 4 11 9 3 1
need z= and p-value=
The following data are given for a biogas digester suitable for the output of six cows. The volume of digester is 7.5 m3 , the volume of gas holder is 4 m³ and the retention time is 26 days . Find the height of gas holder height of gas holder =- cm
A hospital is using X bar and R charts to record the time it takes to process patient account information. A sample of five applications is taken each day. The first four weeks’ (20 days’) data give the following values: =16 min =7 min If the upper and lower specifications are 21 minutes and 13 minutes respectively, calculate , Cp and Cpk. Interpret the indices.

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