Convert the matrix of observations to mean-deviation form, and construct the sample covariance matrix. 12 15 3 6 7 4 10 7 15 3 3 3 A. В. 90 - 36 36 30 - 12 12 S = - 36 18 S = - 12 36 0 108 12 о 36 30 - 3 –15 - 12 - 30 12 - 12 - 3 18 - 12 - 3 S = 12 -6 S = - 15 - 12 18 9. - 12 0 - 36 - 12 - 3 2 D. C.

1.unstructured2 . Exchangeable3. AR(1) Autocorrelation (1)4 . indepenent

HW4 Xi 4 6 11 3 16 Please write your answers and your work on a separate sheet. Based on Chapter 3 (pp. 142-148) 1) Compute and interpret the sample correlation coefficient for the five observations taken for two variables below. X₁ 6 11 15 2) Compute and interpret the sample correlation coefficient for the five observations taken for two variables below. 21 27 Based on Chapter 14 Yi 50 50 40 60 30 Xi 3 12 6 20 14 Yi 6 9 6 17 12 3) Consider the following data. MN 260M bi-s (xi-xi-g = {(x1-x)² Yi 55 40 55 10 15 a. Develop the estimated regression equation by computing the values of b₁ and bo. b. Use the estimated regression equation to predict the value of y when x = 10.

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Remove Northern Ireland (observation 11) from the data in exercise 9.27.(a) Obtain the scatterplot and correlation for the remaining regions ID      Alcohol Tobacco 01      6.47    4.03 02      6.13    3.76 03      6.19    3.77 04      4.89    3.34 05      5.63    3.47 06      4.52    2.92 07      5.89    3.20 08      4.79    2.71 09      5.27    3.53 10      6.08    4.51 11      4.02    4.56

What is the relationship between the attendance at a major league ball game and the total number of runs scored? Attendance figures (in thousands) and the runs scored for 9 randomly selected games are shown below.   Attendance 24 54 59 17 32 58 30 26 18 Runs 5 14 14 5 7 8 10 6 4   Find the correlation coefficient:  r=r=    Round to 2 decimal places. The null and alternative hypotheses for correlation are:`H0: `      == 0`Ha:`       ≠≠ 0    The p-value is:    (Round to four decimal places) Use a level of significance of α=0.05α=0.05 to state the conclusion of the hypothesis test in the context of the study. There is statistically significant evidence to conclude that a game with higher attendance will have fewer runs scored than a game with lower attendance. There is statistically significant evidence to conclude that there is a correlation between the attendance of baseball games and the runs scored. Thus, the regression line is useful. There is statistically insignificant…

2- I need help with this stats exercise, it has 7 parts so please provide the answer for all of them since I struggle with all the parts of the exercise.  The last part which is a sentence has the options of -Because the​ P-value of the linear correlation coefficient is (Greater than / Less than or Equal to ) the significance​ level, there (Is / Is not) sufficient evidence to support the claim that there is a linear correlation between Internet users and scientific award winners.