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A real estate salesperson has three properties listed for 40k, 100k, and 80k. He thinks that the probability of selling the first listing in November is .5. The probabilities of selling the other two listings in November are 1/4 and 3/4 respectively. Determine the probability mass function of the salesperson's November sales (in $). What is the probabiity that his sales for November will be less than 100k? Find the mean and standard deviation of the November sales.
Why then does it matter whether we assume straight-line or MACRS depreciation when we assess project NPV?
What is the predicted GPA if a person watches 12 hours of television per week?
Create a 99% confidence interval for mean overall duration of symptoms in population of individuals who used zinc lozenges.
Now make a scatter plot of data from 1982 to 1998 (again, use years since 1800). Determine a linear, power, or exponential model that explains the crude oil production during this time period.
What is the aim of multiple linear regression? Discriminate analysis? Canonical correlation? Multivariate analysis of variance?
In a study designed to test the effectiveness of acupuncture for treating migraine, 142 subjects were treated with acupuncture and 80 subjects were given a sham treatment. The numbers of migraine attacks for the acupuncture treatment group had a m..
Develop a pie chart to summarize these contributions. Develop a bar chart to summarize these contributions and why is it appropriate to construct a bar chart for these data instead of a histogram?
A large bakery buys flour in 25-pound bags. The bakery uses an average of 4,860 bags a year. Preparing an order and receiving a shipment of flour involves a cost of $10 per order. Annual carrying costs are $75 per bag.
Do the data you obtained provide enough evidence to reject the claim? Use a 1% level of significance.
Suppose event A and event B are mutually exclusive with the P(A)=12 and P(B)=1/3.Which of the following statements best describes these two events?
Under what circumatances do you use a one-sided confidence interval instead of a 2 sided confidence interval?
If you did not know anything about standard deviation of population from which sample was taken, find out the 95% confidence interval for mean test score.
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