Answer: 26.5% increase
Explanation:
Current profit = Sales - Variable costs - fixed costs
= ((32.50 - 16.50) * 360 bears) - 1,420
= $4,340
Sales increase by 20% = 360 * ( 1 + 20%) = 432 bears
New profit;
= ((32.50 - 16.50) * 432 bears) - 1,420
= $5,492
Effect of sales increase = ( 5,492 - 4,340) / 4,340
= 26.5% increase
Answer:
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Explanation:
Answer:
exists when a production or consumption of a product results in a coast of third party
a) ( 0.8509718, 0.8890282)
b) ( 0.7255, 0.7745)
Explanation:
(a)
Given that , a = 0.05, Z(0.025) =1.96 (from standard normal table)
So Margin of error = Z × sqrt(p × (1-p)/n) = 1.96 × sqrt(0.87 × (1-0.87) / 1200)
=0.01902816
So 95 % confidence interval is
p+/-E
0.87+/-0.01902816
( 0.8509718, 0.8890282)
(b)
Margin of error = 1.96 × sqrt (0.75 × (1-0.75) / 1200) = 0.0245
So 95% confidence interval is
p+/-E
0.75+/-0.0245
( 0.7255, 0.7745)