Mathematics, 13.10.2020 03:01 kward591
ECONOMICS 20PTS
As an investment into his snow clearing business, Jay made a non-refundable purchase of a snow plow for $1,000. The plow can clear two parking lots per hour, and when Jay uses a shovel he can clear one parking lot per hour. He charges the same price regardless of method. Discouraged by the high cost of the plow, Jay considers going back to his old method of shoveling parking lots. Based on the information given, Jay should
A. Use a shovel.
B. Use the snow plow.
C. Use the shovel until the plow has been paid off.
D. Use the snow plow until it has been paid off.
E. Alternate between shovel and plow until the plow has been paid off.
Answers: 3
Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
Mathematics, 22.06.2019 00:00
Afair survey question is one that does not encourage biased responses. which survey question is fair? a.) do you agree that only unethical people take credit for other people’s work? b.) have you ever taken credit for somebody else’s work? c.) have you ever engaged in unethical behavior, such as taking credit for somebody else’s work? d.) don’t you think it is unethical to take credit for somebody else’s work?
Answers: 1
Mathematics, 22.06.2019 05:30
Sheila and her study partner flipped a coin 120 times. they flipped 70 heads and 50 tails. what is the experimental probability that the next flip will be heads up?
Answers: 1
Mathematics, 22.06.2019 06:30
The area of the rectangle shown is 2x^2-x-15 square units. what is the width of the rectangle?
Answers: 2
ECONOMICS 20PTS
As an investment into his snow clearing business, Jay made a non-refundable purchas...
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