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A researcher wished to estimate the difference between the proportion of users of two shampoos who are satisfied with the product. In a sample of 400 users of Shampoo A taken by this researcher, 78 said they are satisfied. In another sample of 500 users of Shampoo B taken by the same researcher, 92 said they were satisfied.
Construct a 90% confidence interval for the true difference between the two population proportions.
Based on your answer in (a), what would be your response at ".1 to the claim that there is no difference in customer satisfaction between the two shampoos?
Calculate the dividend yield, the capital-gains yield, and the total return to the stock. Express your calculation in percentage terms.
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Compute the trucks net book value at the end of its third year of use under each depreciation method.
Mamma Mia's Pizza must replace its current pizza-baking oven. The two best alternatives are Crispy Cruster and Easy Baker. Assume an income tax rate of 50% and MARR after-taxes of 10% per year. Which pizza-baking oven would you select and why
If there are 13 million unemployed and a working age population of 160 million, what would the number of employed be to arrive at a labor force participation rate of 64%?
change in quantity of hybrids change in in price of gas 0.25 change in quantity of suvs change in price of gas
1. Suppose the price of a bond is initially $900 but increases to $950. What is happening to the interest rate on that bond?
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Imagine cell phones are simple and the only thing consumers care about is minutes. Suppose a monopolist wireless company says, \The cell phone and the first 6 minutes are free, and the price of each additional minute is $2." Now suppose your deman..
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In 2008, the price of crude oil (per barrel) set an all-time record of approximately $147 and then sank to near $40 by the end of the year. Since crude oil is a resource that is used in many industries
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