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Find the z score corresponding to a score of X = 60 for each of the following distributions:
a) µ = 50 and σ = 10
b) µ = 50 and σ = 5
c) µ = 70 and σ = 20
d) µ = 70and σ = 5
would this prove that they are exceeding their goal, using α = .025?
Explain how much should the airport authority be willing to pay for perfect information about the success of a brand new airport.
Determine the largest plausible average balance for the accounts of those using her managed fund in which you could have 90% confidence.
The number of bombardment necessary to achieve the disintegration of a certain nucleus is assumed to have the distribution above. In one sequence in which b bombardments are available, of these have already failed to disintegrate the nucleus. What..
Calculate the sample mean and sample standard deviation.
Let x be the random variable that denotes the net amount a playr wins by playing this lottery. Write the probablity distribution of x. Determine the mean and standard deviation of x. How will you interpret the values of the mean and standard devia..
Could you please explain in words how you figure out deciles, quartiles, kurtosis, skewness in Excel? How do you find the sum count, largest, and smallest in Excel?
The average price of a car wash is $5.00. A sample of six car washes averaged $5.70 and had a sample standard deviation of $1.30. Assuming a normal population, use the critical value method to test the claim at a= 0.05.
he population consists of all 15 year olds living in the attendance district of a local high school. You plan to obtain a simple random sample of 200 such residents by using the roster of the high school as the sampling frame.
Computing the mean value for the given data - What is the new mean for the class and frequency distribution graph, what type of graph should be used
Find out how to minimize cost of meeting demands in Houston and Tampa.
Multiple choice questions based on regression - dependent variable Y and an independent variable X is provided.
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