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The following data are survival times in days from a life-threatening condition: 15, 18, 18, 21, 21C, 25°, 26. Graph the estimated S(t) by the Kaplan-Meier method using a computer program.
A file cabinet manufactor estimates that 5% of it's file cabinets will have drawers that close improperly. Assume a production of 120 cabinets is completed. What is the mean and the standard deviation of this distribution?
Solve x^2 = -2 where x is a real number. Simplify your answer as much as possible.
When would you calculate a multiple correlation coefficient? What do you learn if you square a multiple correlation?
the bureau of labor statistics reported that the mean amount spent per year by all american citizens on tobacco
STA101 - Statistics for Business Assignment. A basketball player has the following points for seven games: 20, 25, 32, 18, 19, 22, and 30. Compute the following measures: Compute the variance and the standard deviation
determine whether the hypothesis test involves a sampling distribution of means that is a normal distribution student t
Does the process appear to have been in control? Determine control limits for future production.
The Wilcoxon signed rank test is computed for the data and gives a value W + = 161.5. Using the Normal approximation (without the continuity correction) the P-value.
1. each supplier is rated on a 10-point scale 10 highestfor four different criteria price quality delivery and
the police department for a major city has found that the average height of their 1250 officers is 71 inches with a
(a) Consider a normal distribution with mean μ = 88. If 2% of the values lie below x = 50, find the standard deviation σ. (b) Consider a normal distribution with standard deviation σ = 15.6. If 10% of the values lie above x = 17.2, find the mean μ.
you buy 10 at-the-money call options with expiration in 91 days for a stock with continous dividends of 2 volatility of
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