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Sagot :
Answer:
b). 72.458 %
a). 24, 213
Explanation:
1). The second option i.e. 72.458% correctly measures the variance percentage brought in the dependent variable(regressed the quantity demanded) by manipulating the independent variable(price elasticity). The first option is wrong as it shows R multiple which is rather the coefficient. The third and the last options are incorrect as they display the intercept employed to determine the quantity and the key error of calculating the standard deviation.
2). The predicted quantity demanded would be 24,213 if the price is fixed at $7.00.
It can be calculated using the formula;
Quantity demanded = Intercept + (Adjusted R squared * Price coefficient)
∵ Quantity Demanded = 56,400.50 + (7 X -4,598.2)
= 24,213
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