A population has a mean of 200 and a standard deviation of 50. Suppose a sample of size 100 is selected and x is used to estimate m.
a. What is the probability that the sample mean will be within ±5 of the population
mean?
b. What is the probability that the sample mean will be within ±10 of the population
mean?

Problem 9-5. net present value and taxes [lo 1, 2] penguin productions is evaluating a film project. the president of penguin estimates that the film will cost $20,000,000 to produce. in its first year, the film is expected to generate $16,500,000 in net revenue, after which the film will be released to video. video is expected to generate $10,000,000 in net revenue in its first year, $2,500,000 in its second year, and $1,000,000 in its third year. for tax purposes, amortization of the cost of the film will be $12,000,000 in year 1 and $8,000,000 in year 2. the company’s tax rate is 35 percent, and the company requires a 12 percent rate of return on its films. required what is the net present value of the film project? to simplify, assume that all outlays to produce the film occur at time 0. should the company produce the film?

Whom do progressive taxes assess? a. only a large percentage of high-income households b. only a large percentage of organizations c. a large percentage of high-income households and organizations d. a large percentage of low-income households e. a small percentage of high-income households

Jonathan’s class has 30 boys. of the students in his class, 60% are girls. how many girls are in jonathan’s class? (a)75 (b)60 (c)45 (d)20