b) yes there is correlation between size of of coffee shop and pounds of coffee brewed daily. Since regression coefficient is very high there is a positive correlation (R^2 =0.9278),
C)correlation coefficient, R =sqrt(0.9278) = 0.96
d)yes correlation does exist at alpha = 0.05
e) y= 0.3512x-4.0846
f)for 95 square yard
coffee brewed, y = 0.3512*95-4.0846 = 29.28 pounds
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