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All the customers who entered a store on a particular day were given a surgery to fill out concerning their opinions of the service at the store? What type of sample is this? I can't decide between voluntary response or convience.
Statistics and Probability, Statistics
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What is the sample size for studies with MOE of +/-3.5% and +/-2.8%?, with a confidence level of 95%, sample statistics of .50? Please show work.
What is the probability that a randomly selected person will have a birthday in November? Assume that this person was not born in a leap year. Express your answer as a simplified fraction or a decimal rounded to four dec ...
Doctor wants the estimate the HDL cholesterol of all 20 to 29 year old females. How many subjects are needed to estimate the HDL cholesterol within 3 points with 99% confidence assuming o=18.2? Suppose the doctor would b ...
What statistic was calculated to determine differences between the intervention and control groups for the lumbar and femur neck BMDs? Were the groups significantly different for BMDs?
Suppose a firm uses sales teams to market their products. For example, a construction equipment manufacturer may assign three sales agents to a team so each team member can specialize in particular product functions (e.g ...
Let Timco use a capital structure that is 35% debt and 65% equity, The firm can borrow at 6%. The tax rate is 40%. Let the firm beta be 1.9, the market return 14%, and the risk free rate 2%. Find the WACC.
At a college, 66 % of courses have final exams and 56 % of courses require research papers. Suppose that 45 % of courses have a research paper and a final exam. Find the probability that a course has NONE of these two r ...
You play the following game against your friend. You have 2 urns and 4 balls. One of the balls is black and the other 3 are white. You can place the balls in the urns any way that you'd like, including leaving an urn emp ...
An annual survey of first-year college students ask 273,000 students about their attitudes on a variety of subjects. According to a recent survey, 57% of first-year students believe that abortion should be legal. Use 0.0 ...
Suppose you believe that Du Pont's stock price is going to decline from its current level of $82 sometime during the next 5 months. For $5.25 you could buy a 5-month put option giving you the right to sell shares at a pr ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
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