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Suppose f(x, y)=1 & g(x, y)= x+y 0< x <1, 0< y<1 Determine the most powerful test of size alpha =.05 of hyp: (X, Y) ~ f vs. alt: (X, Y) ~ g.
in basketball a players free throws percentage ft is expressed as a number between 0 and 1 which represents the
Construct a 90 percent confidence interval for the proportion of all kernels that would not pop.
True mean number of years to retirement of its employees to within one month of the true mean and with 90% confidence if the range of the data is 7 years?
A local bakery uses its stock of sugar according to demand for its products. Indeed, the weekly sugar use follows approximately a normal distribution with mean 2,400 lb. and with standard deviation 400lb.
Obtain the estimated regression function. Plot the estimated regression function and the data. Does a linear regression function appear to give a good fit here?
You are appraising the quality of diamonds for your importer. A diamond without a clear center (opaque center) shall be downgraded and sold at discount.
Find the probability of getting a head and rolling a six
Determine whether the sampling method is independent or dependent for the following example. A researcher wants to know whether the newly issued "state" quarters have a mean weight that is different from "traditional" quarters.
A stationery store to estimate the mean retail value of greeting cards purchased by its customers when they visit the store. A random sample of 15 customers indicates a mean amount of $2.55 with a standard deviation of $0.44 per customer per visi..
Compute the expected value of perfect information. Do you think it would be worth trying to obtain additional information concerning which scenario is likely to occur?
for testing the difference between two population proportions the pooled proportion estimate should be used in the
Assume X is an exponential random variable with parameter lambda. Find the method of moments estimator for lambda.
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