pounds. z-score -3.0 -2.9 -2.8 -2.7 -2.6 -2.5 -2.4 -2.3 -2.2 -2.1 Percentile 0.1

Question

pounds.

z-score -3.0 -2.9 -2.8 -2.7 -2.6 -2.5 -2.4 -2.3 -2.2 -2.1 Percentile 0.13 0.19 0.26 0.35 0.47 0.62 0.82 1.07 1.39 1.79 z-score -2.0 -1.9 -1.8 -1.7 -1.6 -1.5 -1.4 -1.3 -1.2 -1.1 Percentile 2.28 2.87 3.59 4.46 5.48 6.68 8.08 9.68 11.51 13.57 z-score -1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 Percentile 15.87 18.41 21.19 24.20 27.43 30.85 34.46 38.21 42.07 46.02 entage Who parts (al through bel Sushi Mamage Equalif oefficient between the parcentage of people who and th: percentage who do not app you for the proval of age equality hav trong neg approval of age qualif have to try approval of to try sushi and agocquairr have trong posi O D. Unwilling to try su hi and di approval of mamapaenualry hav a weak post a comelann for thA par Antage who wonT try suRhi and thA entage wha don decimal What porc crtage of p:opic anticipate do not app ago equality generation where h? About wont approve of mamage cquaity. st percent age equality.

Explanation / Answer

a)

R square = 0.5741
So, r = correlation coefficient = 0.7576 or 0.76 or 76%

b) C option has 76% is a strong positive correlation.

c) Equation is:

y = 0.66x + 15.88

d) When x = 28%

y = 0.66x + 15.88

y = 0.66*28 + 15.88

y = 34.36%

Best-fit values Slope 0.6644 ± 0.4046 Y-intercept 15.88 ± 23.72 X-intercept -23.90 1/Slope 1.505 95% Confidence Intervals Slope -1.077 to 2.406 Y-intercept -86.19 to 118.0 X-intercept -infinity to 36.87 Goodness of Fit R square 0.5741 Sy.x 8.161 Is slope significantly non-zero? F 2.696 DFn,DFd 1,2 P Value 0.2423 Deviation from horizontal? Not Significant

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