In the least-squares line y hat = 5 – 6x, what is the value of the slope? ..il A

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In the least-squares line y hat = 5 – 6x, what is the value of the slope? ..il AT&T; * 73%- 7:14 PM webassign.net ,215, ana z.xy ,5 1/. Compute r. (Round to 3 decimal places.) As x increases, does the value of r imply that y should tend to increase or decrease? Explain your answer O Given our value of r, y should tend to increase as x increases. O Given our value of r, we can not draw any conclusions for the behavior of y as x increases. O Given our value of r, y should tend to decrease as x increases. O Given our value of r, y should tend to remain constant as x Need Help? Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone? For a random sample of tropical cyclones, let x be the lowest pressure (in millibars) as a cyclone approaches, and let y be the maximum wind speed (in miles per hour) of the cyclone. (a) Make a scatter diagram of the data. Flash Player version 10 or higher is required for this You can get Flash Player free from Adobe's website. Then visualize the line you think best fits the data. (b) Use a calculator to verify that × = 581 8,2x2 5,646,370, 575, 2 = 65,607 and Zry = 550,491. Compute r. (Round to 3 decimal places.) As x increases, does the value of r imply that y should tend to increase or decrease? Explain your answer. O Given our value of r, y should tend to remain constant as x O Given our value of r, y should tend to decrease as x increases. O Given our value of r, y should tend to increase as x increases. O Given our value of r, we can not draw any conclusions for the behavior of y as x increases Need Help? hr

Explanation / Answer

The regressionvequation has the form Y=a+bX, where Y is the dependent variable (that's the variable that goes on the Y axis), X is the independent variable (i.e. it is plotted on the X axis), b is the slope of the line and a is the y-intercept.

Now here equation is y hat = 5 – 6x, hence slope is -6

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