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A random variable X has P{X = 0} 0.9. Given X ≠ 0, it has a uniform distribution between 5 and 15. Thus, E(X) = 1. Obtaining uniform random numbers as instructed at the beginning of the Problems section, use simulation to estimate E(X).
(a) Estimate E(X) by generating five random observations from the distribution of X and then calculating the sample average. (This is the crude Monte Carlo technique.)
Of the 500 students who responded to a survey about recycling on campus, 350 said they recycle on a regular basis. The sample proportion is ??
you toss a fair coin 400 times. us- ing the normal approximation find the approximate probability of getting1 exactly
Use the given information to estimate the probability that a newborn baby is male, given that the ultrasound predicted the baby would be male.
Precisely (i.e., using specific numbers) what does central limit theorem tell us about sampling distribution of sample means for samples of this size from this population?
a bank is trying to determine which of two machines should be rented to process checks. machine 1 rents for 10000 per
CD Camera produces a new camera that it claims can take an average of more than 7 photographs per second. A test of 36 randomly selected cameras yielded the following sample values:
given a standardized normal distribution with a mean of 0 and a standard devication of 1 determine the following
Construct and interpret the 90% Confidence Interval for the mean starting salary of college graduates in developmental psychology. Salaries are in thousands.
Calculate the corrected mean and corrected standard deviation.
Estimate demand for the next four weeks using a four-week moving average as well as simple exponential smoothing with a = .01. Evaluate the MAD, MAPE, MSE, bias and TS in each case. Which of the two methods do you prefer? Why?
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports.
If the monthly demand for videos on average is 180 and standard deviation = 60, what is the number of videos the manager should order to meet 90% customer demand?
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