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Miss Maple is considering two securities, A and B, with the relevant information given below:
State of Economy Probability Return on Security A Return on Security B
Bear 0.4 3.0 % 6.5%Bull 0.6 15% 6.5%
a. Compute the expected return and standard deviation of each of the two securities.
b. Assume Miss Maple invested $2,500 in Security A and $3,500 in security B. Calculate the expected return and standard deviation for her portfolio.
Assume that Los Arboles had a special program in place to encourage helmet use. Elucidate to what extent did removal of the outlier improve the fit.
We wish to create this mean value interval for selling price with 95% confidence level. Find out the best point estimate (average) for selling price. Critical t-value(s) associated with 95% confidence level.
Create a 90% confidence interval for proportion of all kernels that would not pop.
the null hypothesis is to be tested at 95% confidence. Determine the critical value(s) for this test.
In a recent year, 11th grade New York public school students taking an English test produced test scores that were normally distributed with a mean of 81 and a standard deviation of 6. Let x be a random variable that represents a test score.
(a) Find the median cost of houses at Coal City in 1988. (b) Find the modal selling price of houses at Coal City in 1988.
What is the best prediction for the number of products sold based on advertising costs of $7000?
Find the range and the standard deviation of the times.
A committee of three is selected at random from a set consisting of five Democrats, eight Republicans, and two Independents.
Which of the following(s) can be considered (a) variable(s)?
If life of wild pheasants follows a normal distribution with a mean of 9 months and a variance of 9, what percent of the population will be less than 11 months of age.
A sample of 49 provides a sample mean of 38 and a sample standard deviation of 7. Determine the standard error of the mean.
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