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Investment A has the expected return of $25MIL and Investment B has expected return of $5MIL. Market risk analysts think standard deviation of return from A is $10MIL and for B is $30MIL (negative returns are possible).
(a) If you suppose returns follow normal distribution, which investment would give better chance of getting at least a $40MIL return and describe why.
(b) How could the answer in question (a) change if you knew returns followed skewed distribution instead of normal distribution? Describe briefly.
To guarantee that cans of soda are properly filled, some cans are sampled and the amounts measured. The overall average for the samples is 12 ounces.
You are given an annual time series with 40 consecutive values and asked to fit a fifth-order autoregressive model.
Experience raising New Jersey Red chickens revealed the mean weight of the chickens at five months is 4.35 pounds. The weights follow the normal distribution.
Assume you have drawn a simple random sample of 10 students from a college campus and recorded how many hours each student studies (X) during the ¯rst week of December, 2009. Results:
When would you use ANOVA at your place of employment, in your education, or in politics? Please share the WORDS that would lead you to the null hypothesis for a specific and simple example
The publisher reports that 80% of college professors require or recommend that their students purchase some type of textbook package.
What method is best suited for such a survey? Draw the sample using the random number table and bring out the rationale of the procedure.
A sample of 23 European countries found that the variance of life expectancy was 7.3 years. What is the 95% confidence interval for the variance of life expectancy in Europe.
Derive the formula for the expected value Y, derive the formula for the moment generating function of Y
Explain the ANOVA output table values:
First explain what the Gini coefficient is and what hypothetical Gini values of 0 and 1 mean. Sort the data by the Gini coefficient in 2000 and look at the list of countries.
The mean of a normal probability distribution is 60; the standard deviation is 5.
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