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You have the opportunity to buy perpetuity which pays 1,200 annually your required rate of return on this investment is 6 percent what. Is the present value of this perpetuity
An analyst tests this claim by looking at a random sample of 50 stocks and finds a sample mean of 3.8% and a sample standard deviation of 1.1%. Using α = 0.05, does the analyst have statistical evidence to reject the claim made by the magazine?
a. How many deaths were observed in this sample of patients? b. Use the product-limit method to estimate the survival function S(t). c. What is S(1), the estimated probability of survival at one month? What is the estimated probability at 5 months? A..
A gambler decides to keep betting on red at roulette, and stop as soon as she has won a total of five bets.
Recognize and explain potential threats (up to 3) to external validity.
Using your conclusion from part (a), conduct the appropriate test for evidence that the mean time to complete Form 1040 for the lower-income level is less than the mean time for the higher-income level.
Derive the formula for the expected value Y, derive the formula for the moment generating function of Y
You own a Pepsi bottling plant and you are concerned about filling the bottles to the correct level.
A group of teenagers were monitored closely over the period of several weeks to measure how frequently they watched violent television programs.
Find (i) the percentage of batteries with a life time of at least 470 hours (ii) the proportion of batteries with life time between 385 and 415 hours. (iii) the minimum life of the best 5% of batteries.
Suppose the daily amount of solar radiation in Los Angeles is normally distribution with mean 450 calories and standard deviation 50. Determine the probability that for a randomly chosen day, the amount of solar radiation is between 350 and 550.
A batch of 2500 resistors is normally distributed, with a mean resistance of 1.5 ohms and a standard deviation of 0.08 ohm. Four resistors are randomly selected
What is the main principle behind analysis of variance? Explain the sum-of-squares principle.
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