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A random sample survey of 1,000 motorists who purchased a brand new Fotoykya car six months ago found that 18% of them had been back to their garage for a repair during the previous three months. What is the standard error of this proportion?
Statistics and Probability, Statistics
Question: 1) A random variable X is defined as the difference between the higher value and the lowervalue when two dice are thrown. If they have the same value, X is zero. a.) Find the probability distribution for X. b.) ...
Medical researchers studying the effects of a low carb diet versus a normal diet randomly assigned obese patients to one of the two diets. The patients were followed up with after several months and the amount of weight ...
The mean of the annual return for common stocks from 1926 to 1992 was 16.5%, and the standard deviation of the annual return was 19%. In later parts of the question we will ask: a. What is the probability that the stock ...
In a single? season, an average of 2.4 home runs were hit per game. Assume the number of home runs per game follows the Poisson distribution. ?a) What is the probability that 6 home runs will be hit in a randomly selecte ...
How does a market-maker decide the edge (offset) required to perform an options trade? Explain why this edge would be different for options of different strikes as well as for option combinations?
It has been a bad day for the stock market and you have heard that only 30% of all stocks gained value. Suppose you have a portfolio of 10 securities and assume a binomial distribution for the number of your stocks that ...
On the ballot, Illinois voters had the option to select "yes" or "No" when asked if the state's minimum wage should be increased from $8.25 to $10 an hour by January 1, 2015. Before the actual voting date, a survey with ...
If the coefficient of determination is 0.233, what percentage of the data about the regression line is explained? How do I go about solving this?
What are the uses and value of statistical significance testing and the p-value as demonstrated in the various analytical techniques (t-tests, ANOVA, chi-square, etc.). What's the fundamental reason we apply these techni ...
1. What is the standard deviation of the sampling distribution? 2. What is the expected value? 3. What is the probability that the average life in the sample will be between 2,670.56 and 2,809.76 hours? 4. What is the 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
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As