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You're considering paying $5 to buy a ticket in a local lottery. You were told that 10,000 tickets will be sold. There are 5 prizes. The first prize is $5,000, the second is $1,000, the third is $500, the fourth is $100 and the last prize is $10.
Compute the expected value from the payoff.
a) $0.661
b) $1.20
c) $5.00
As part of this trial, they want to find out whether there is a difference between effectiveness for women and for men. At = .05, what is the test value?
A company has set a goal of developing a battery that lasts over 5 hours in continuous use in a sample of 42 of these batteries the mean life time was 306.25 hours with a standard deviation of 29.31
Can the company claim that they are faster than the average utility?
Suppose that the cars have been categorized according to whether the car needs warranty-related repair (yes or no) and the country in which the company manufacturing the car is based
Calculate the population mean and population standard deviation.
What's the expected value of sample information? How much might the physicians be willing to pay for a market study?
Using α = .05 test for significance differences among the population mean wasted time for theses three urban areas. What is the p-value? What is your conclusion?
A Correlation matrix (correlation, coefficients and probability level under the hypothesis rho= 0) for a company's sales force (age, years of service, and current sales) is given below. Comment.
What is the probability the average of the sample is more than $38000 and What is the standard deviation of the sample mean
Research question: Are the mean crash damages the same for these three vehicles?
To maximize Andre's probability of landing on the net, how far away from the cannon should he position the nearest edge of the net?
Assume duration of human pregnancies follow mound-shaped distribution with mean of 266 days and the standard deviation of 16 days.
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