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The monthly rent (dollars) for a two-bedroom apartment on the west side of town was recorded for a sample of ten apartments.
950 745 875 835 1030 920 840 1085 650 895
Obtain a 95% confidence interval for the mean monthly rent for two-bedroom apartments. Assume that measurements are normally distributed. Round to two decimal places.
Generate survival times X from an exponential distribution with rate lambda=1 with a censoring distribution C being exponential with rate theta = 2/3. Then Plot Kaplan-Meier Survival curve estimates along with true survival curve for n=25,100,1000..
A random sample a 16 Google managers yield the following information on annual salaries. The sample mean is $69,000, with a sample standard deviation of $4,000. What is the mean salary of all Google managers?
4 clothing manufacturer tests SRS of 5 specimens of each fabric. Determine the probability that mean breaking strength of 5 untreated specimens exceeds 50 pounds?
Choose a variable. Before collecting the data, decide what a likely average might be, then complete the following: Write a brief statement of purpose of the study
On which test did he do better compared to the rest of the class?
Based on this information, by what factor does the risk of having an accident increase due to driving while intoxicated?
An owner of a fast food restaurant reported to corporate headquarters that the average bill paid by his customers in the last quarter was $6.20 and that the standard deviation was $1.90.
Researcher is interested in testing whether there are differences in mean between population one and population two.
The Type 1 error states the probability of being wrong whenever:
Compute an exponential smoothing forecast with a =.20, an adjusted exponential smoothing forecast with a = .20 and B =.20 and a linear forecast. Compare the three forecast, using MAD and average error (E) and indicate which seem to be most accurat..
An American put option to sell a swiss franc for dollars has a strike price of $0.80 and a time to maturity of one year. The volatility of the swiss franc is 10%
A mean score on a standardized test is 50 with a standard deviation of 10. Answer the following
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