Suppose an industry that has n1 = 2 firms each with a supply curve S1(p) = 2p-8, and n2 = 4 firms each with a supply curve S2(p) = p-2. Construct the industry supply curve and plot it on a graph.
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The following are amounts of time (minutes) spent on hygiene and grooming in the morning by survey respondents (based on data from an SCA survey). 15, 16, 18, 25, 26, 30, 32, 41, 45, 55, 63. Does the number 63 appear unu ...
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The probability that someone made a purchase at a store is 0.36. You randomly select 15 people who went to the store. The random variable x represents the number of people who made a purchase. a. Find the probability tha ...
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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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In a population of Ph.D students 50% have paid assistant ships. A random sample of n=200 students are chosen. What is the expected number of students who have paid assistant ships in this sample?
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Determine the minimum sample size required when you want to be 98% confident that the sample mean is within two units of the population mean. Assume a standard deviation of 7.55 in a normally distributed population.
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Has a recent drop in airplane passengers resulted in better on time performance? Before the recent downturn, one airline bragged that 92% of its flights were on time. A random sample of 165 flights completed this year re ...
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Three mutually exclusive new designs for an aircraft engine are under consideration. The engine has a ten-year life. The first engine incurs a cost of $1.2 million for a net saving of $300,000 per annum as compared to an ...
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Each of the following lists has an average of 50. For which one is the spread of the numbers around the average biggest?smallest? a. 0, 20, 40, 50, 60, 80, 100 b. 0, 48, 49, 50, 51, 52, 100 c. 0, 1, 2, 50, 98, 99, 100 Gu ...
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In a health club, research shows that on average, patrons spend an average of 42.5 minutes on the treadmill, with a standard deviation of 4.8 minutes. It is assumed that this is a normally distributed variable. Find the ...
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