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A 95% confidence interval for the population proportion of professional tennis players who earn more than 2 million dollars a year is found to be between .82 and .88. Given this information, what the sample size that was used was approximately:
Statistics and Probability, Statistics
Jane and John Doe are twins. Jane saves $10,000 per year from age 25 to 34 and nothing from age 35 onward (10 years of saving in total). John saves nothing from age 25 to 34 and $10,000 from age 35 to 64 (30 years of sav ...
Please let me know what are the steps involved in computing the future value when you have multiple cash flows.
In a survey of 400 adults that say traffic is a problem: East reported 36% is a problem, South 33% problem, Midwest 26% problem and West 55% problem. (a) The 95% confidence interval for the proportion from the West say t ...
What is the maximum that should be invested in a project at time zero if the inflows are estimated at $10,000 annually for three years, and the cost of capital is 9%?
SmithCo is a supplier to many brand name makers of mobile phones. SmithCo manufactures the external shells that enclose mobile phones. The strength of a shell is measured by applying increasing pressure to the shell and ...
An investor would like to add the following bond to her portfolio. The bond would be held for 7 years and then sold. The investor has gathered the following information to analyze the bond: Company XYZ Currency: CAD Face ...
A system has two independent components. Both components must function for the system to function. The first component has 7 components that each work with probability 0.95. If at least 5 elements are working then the fi ...
The monthly utility bills in a city are normally distributed with a mean of $121 and a standard deviation of $23. Find the probability that a randomly selected utility bill is between $115 and $130. Probability of 0.07 a ...
There are 5 women and 8 men in a department. How many ways can a committee be selected if there must be 2 men and 2 women on the committee? Number of ways to select a committee containing 2 men and 2 women is
What type of data values are quantitative and the number of values is finite or countable?
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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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