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Consider the following cash flows:
Year Cash Flow
0 -$5,900
1 2,000
2 2,700
3 1,500
4 900
What is the payback period for the above set of cash flows? In years
Show that the central limit theorem cannot be extended to convergence in probability, that is, if X1, X2, ... are independent, identically distributed random
Given that X = 78, σ2 = 25, n = 10, and α = 0.05, test H0: µ > 80, assuming observations are randomly sampled from a normal distribution. Also, draw the standard normal distribution indicating where Z and the critical value are located.
Statistician has a data set containing n1 = 7 values of a random variable X and n2 = 6values of a random variable Y . She is interested in using the run test to test the equality ofthe distribution functions.
For a randomly selected sample of 1000 tax returns filed during this period, use the normal approximation to the binomial distribution in determining the probability that between 110 and 140 of these returns were prepared by H&R Block.
Suppose that an individual stock's return is normally distributed with a mean of 10% and a standard deviation of 8%. What is the probability that the stock's return will be at least 16%?
A researcher measures the relationship between Internet use (hours per week) and social interaction (hours per week) in a sample of 10 students.
Be certain to mention what inferential statistics is and why we use it, what is random sampling, which is statistical significance and why we test it.
How does the cost of capital affect capital investments that the firm makes? Cite examples.
Calculate the percentage of refunds expected to exceed $1000 under the current withholding guidelines and prepare a quantitative report advising the company on the optimal course of action.
Psychology and Human Behavior During each summer, many families spend part of their vacation time at a beach along the East or West Coast.
Overall in the city of Ufa, the proportion of males was 51.2%. Is this evidence that human exposure to dioxin may result in the birth of more girls
In a simple linear regression based on 30 observations, it is found that b1 = 3.25 and Sb1 = 1.36. Consider the hypotheses:
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