Derive the following formula relating R^2 of full and reduced models and the F-test:
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- Q/Fit (y = ax² + (b/x)) to the following data: (x:1, 2, 3, 4), (y: -1.51, 0.99, 3.88, 7.66). *a) explain on he strenght and variation of the model (multiple regression) b) At a-value =0.01. test whether there is a significiant relationship between the dependent variable (y) and the independant variables x1, x2 and x3What is the significance of R and R2 in gression model?
- The defending attorney Mr. Justin Case was interested in how a lengthy trial could affect howlong a jury would deliberate on a case (and see if he should just cut to the chase). He observed asample of courtroom trials and noticed the following:Days inTrial (X) 5 2 6 4 5 6 2 4 2 1 HoursDeliberation (Y) 4 4 1 3 1 3 9 2 3 7 5) Mr. Case’s client’s most recent case took 10 days to complete. How long should he \ predict the jury deliberation will take?4. The article "Gender Differences in Individuals with Comorbid Alcohol Dependence and Post-Traumatic Stress Disorder" (Amer. J. Addiction, 2003: 412–423) reported the accompanying data on the Obsessive-Compulsive Drinking Scale (OCSD) score. Gender Male Female Size 44 40 Sample Mean 19.93 16.26 SD 7.74 7.58 (a) Based on the above data, construct a 95% confidence interval for the mean OCSD score for males.Find out the regression coemicients of Y on X and X on Y from the following data: ΣΧ= 50, X= 5 Σ Y-60, Y-6, ΣXY= 350. %3D Variance of X=4, Variance of Y=9.
- using excel, Please Estimate the following regressions, including a constant term: a) RCONS = f[RGDP, RGDP(t-1)] b) RCONS = f(RGDP, YEAR, T) c) RCONS = f(YEAR, T) d) RCONS = f(RGDP, WAR) e) RCONS = f(RGDP, RGDP2) *please show steps on excel, thank you!* I posted this so many time, it is not incomplete. Please solve the best you can.. Answer does not have to be right!Which pair of data points are always on the regression line: Y = a + bx? (0, 0) (0, b) (X, Y) (a,0)for (f) the line equation is (could not include in screenshot): y=2x+(-4) How do you compute the sum of the squared residuals for the LINE in F and sum of residuals for the LEAST-SQUARES regression lind in D? Please do on a TI-84 Plus calculator (or just a calculator) instead of by hand. Thanks
- nts ervices An educational psychologist is examining response times to an on-screen stimulus. The researcher believes there might be a weak effect from age, but expects a more pronounced effect for different color contrasts. She decides to examine a black on white (B/W) combination compared to 2 milliseconds): alternatives: red on white (R/W) and yellow on blue (Y/B). Here is the data for response times (in Source Age (A) Color (B) Interaction (A x B) Error SS 759.083 Os 604.333 o 373.333 5559.25 Age OF 16-17 18-19 20-21 df 2 2 4 B/W 25 9 21 Statistical software was used to run a two-way Anova test. 63 21 10 30 15 AM 33 25 14 16 ANA SAANNNNN 17 12 20 40 17 19 25 24 22 28 00 Color Scheme MS 379.542 of 302.167 OF 93.333 OF 88.242 OF R/W Y/B 20 19 16 43 20 31 20 36 37 35 ២២១១ 19 39 26 29 20 31 41 19 AMATENEG 19 33 22 43 28 36 43 26 F-ratio 4.301 $ 0° 3.424 O 1.058 P-value 0.0177 O 0.0387 OF 0.3849 Σ ||₁The least squares regression line for a set of data is calculated to be y = 24.8 + 3.41x. (a) One of the points in the data set is (4, 37). Calculate the predicted value. (b) For the point in part (a), calculate the residual.Econometrics - using excel, Please Estimate the following regressions, including a constant term: a) RCONS = f[RGDP, RGDP(t-1)] b) RCONS = f(RGDP, YEAR, T) c) RCONS = f(YEAR, T) d) RCONS = f(RGDP, WAR) e) RCONS = f(RGDP, RGDP2) *please show steps on excel, thank you!* I posted this so many time, it is not incomplete. Please solve the best you can.. Answer does not have to be right!
