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- For normally distributed data, what is the area greater than z = 0.34?Which of the following best describes a regression coefficient in a bivariate setting? a. The change in Y predicted by a unit change in X b. The slope of a line that minimizes the sum of squared residuals c. The correlation coefficient multiplied by SDy/SDx d. All of the aboveGiven are the data for two variables x and y. xi 6 11 15 18 20 yi 6 8 12 20 30 D. Compute the standard residuals. Enter negative valies as negative numbers. 1. ? 2 ? (To 4 decimal places) 3. ? (To 4 decimal places) 4 ? (To 4 decimal places) 5 ? (To 4 decimal places) Thank you
- Determine the equation of the normal line at the given x-value. 1) f(x) = 4x2 − 14, x = −2 2) g(x) = x/3 + x3, ? = −3A)I will test the claim that there is no correlation (start with the Claim and finish with the conclusion) The best estimate The P value is (big/small) so I have to (either give the average of the y's or plug in the x into the y-=mx+b)The average weight of a Coastal male Grizzly Bear is approximately normal with E(x); =795 pounds and SD * (x) = 80 pounds. 8. How likely is it to randomly select 64 Coastal male Grizzly Bears with a sample average weight of 810 pounds or more? Which density curve is the best model for this problem?
- A set of n = 4 pairs of X and Y values has a Pearson correlation of r = 0.60 and SSY = 200. The standard error of estimate for the regression equation is _______. a. 8 points b. 10 points c. 6 points d. 4 pointsUsing the LSRL, y hat = -25.5+1.5x, what is the residual for the data point at (28,19)Consider the following sample regression equation yˆ = 150 − 20x, where y is the demand for Product A (in 1,000s) and x is the price of the product (in $). The slope coefficient indicates that if _____
- A researcher conducted a number of descriptive statistics for two variables X and Y. They were as follows: SP = 15; SSx = 3; My = 7; Mx = 3 What is b equal to (Please include the sign: e.g., -20)? What is a equal to (please include the sign: e.g., +4.0)? Using b and a construct a regression equation, and then using the regression equation, calculate the value of predicted Y when X = 2?If the value of Cronbach’s alpha is 0.07, it means ___________; a. Research instrument is not reliable b. Research instrument is internally consistent c. Data is reliable d. Data is internally consistentConsider the following data: x¯ = 20, sx = 2, y¯ = −5, sy = 4, and b1 = 0.40. Which of the following is the sample regression equation?