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Investment A has an expected return of $25 million and Investment B has an expected return of $5 million. Market risk analysts believe the standard deviation of the return from A is $10 million, and for B is $30 million (negative returns are possible here). (a) If you assume returns follow a normal distribution, which investment would give a better change of getting at least a $40 million return? Explain. (b) How could your answer to part (a) change if you knew returns followed a skewed distribution instead of a normal distribution? Explain briefly.
Find the value of q-hat from proportion and degrees of freedom used to find the t-score.
Assume that in a hypothesis test with null hypothesis H 0 : μ = 14.0 at a = 0.05, that a value of 13.0 for the sample mean results in the null hypothesis not being rejected. That corresponds to a confidence interval result of:
Determine x-bar and s for this data set. You may suppose the values for bulb life are normally distributed. Use traditional method to make your decision.
Find out the conditional probability for the given data. Illustrate what is the conditional chance that the selected person is male?
Any person who is familiar with these trees understand the height of a California redwood tree which is related to another characteristics of the tree.
In a bumper test, three types of autos were deliberately crashed into a barrier at 5mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Are mean crash damages the sa..
A salesperson makes four calls per day. A sample of 100 days gives the following frequencies of sales volumes.
Perform hypothesis testing on one variable's data.
What is the predictive value of a negative test result? In other words, what is the probability that an individual who returns a negative tests for hypertension is not hypertensive? Please give your answer to 3 decimal places.
Explain the difference between descriptive statistics and inferential statistics with less than 50 words? Name two graphs that can be used for describing qualitative data and two for describing quantitative data. Name one graph that can be used to ..
In testing equality of two means below, determine the test statistic? (Use the equal variances formula)
A random sample of 20 vice presidents of Fortune 500 firms is taken. The amount each vice president paid in federal taxes as a percentage of gross income is determined.
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