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An energy manager expects a need for a boiler that costs $150,000 in about seven years. How much money should the manager save each year to have enough money for the purchase in seven years time if the interest rate is (a) 10% and (b) 3%.
Business Economics, Economics
A coin is randomly picked from a collection of 10 coins, the ith coin having a probabiliity i/10 of coming up heads. The coin in then flipped repeatedly until a head appears. Let X be the number of flips necessary. Find ...
A student must answer 15 true/false questions for a test, but the student did not study well. If the student randomly guesses on each question , what is the probability that the student answers 3 questions correctly?
A manufacturing company wishes to compare two production facilities based on Defective units out of total unit production. The company obtains random samples from both facilities. Facility A produced a total of 983 units ...
You have an opportunity to buy a bond with a face value of $10,000 and coupon rate of 14%, payable semi-annually. NOTE: Interest per 6-month period is 7% of Face Value (i.e. $10,000x0.07 = $700 per 6-month period). (i) I ...
A is the event that your friend is sick today and B is the event that you pass this test. These events are independent and Not mutually exclusive. Calculate the probability that your friend is sick todayy OR you pass thi ...
The blood glucose levels of Wistar rats measured 2 hours after eating (Postprandial Blood Glucose - PBG) are approximately normally distributed with mean 5.65 mmol/L and standard deviation 1.63 mmol/L. If a Wistar rat is ...
suppose the lifetime of a particular appliance follows an exponential distribution with a mean of 10 years. what is the probability that the appliance will fail in more than 5 years?
Is the following an example of a binomial experiment? At a campus activities board event, an entertainer gives tickets with sequential numbers to every attendee (i.e. 1, 2, 3, 4, 5... n). Throughout the event, the entert ...
In your opinion, if the government imposes unit sales tax (i.e. $ tax per unit sold) on a product, will the market equilibrium change? Which one, demand or supply will shift? Increase or decrease? Will new tax cause "dis ...
Complete parts (a) and (b) using the probability distribution below. The number of overtime hours worked in one week per employee Overtime hours 0 1 2 3 4 5 6 Probability 0.016 0.063 0.178 0.283 0.220 0.173 0.067 Find t ...
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