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Suppose x follows a distribution with density function: f(x)=C*abs(x-2), 0 =<x=<3; f(x)=0 otherwise.
1. find the cumulative distribution function of F(x) for 2=<x=<3/
2. Find the Median of the probabiity distribution of x.
3. find E(x)
4. Find the cumulative distribution function of F(x) for 0=<x=<2
It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level. State the decision rule.
Assuming that a difference (Δ) of 2 lbs. in the mean was important to detect, a maximum Type I Error (α) level of 5%, and the desire to run a two-tailed test, then:
Define the Linear programming problem (LPP)
The mean return for a random sample of 33 mutual funds is 14.93 percent with a standard deviation of 9.57. Build a 95 percent confidence interval for mu, population mean.
Pattern that most accurately represents mean, median and mode is?
At the .05 significance level, can we conclude that the guideline is still reasonable?
If a 99% confidence interval is calculated to estimate the difference between the average hourly rates for each type of graduate, what is the margin of error? Assume both population standard deviations are equal.
Using the original data, test at the 5% significance level that the population standard deviation of studying times is greater than 4 hours.
Find out the test statistic s and its two-sided P -value. Do data give good evidence that population mean is not zero?
The Federal minimum wage is $7.25 (effective July 2009). If an employee earns the new minimum wage, how many complaints can that employee expect to receive?
Dunn Poitiac has compiled the following sales data regarding the number of cars sold over the past 60n selling days. Answer the following questions for the sales data shown.
Describe the difference in the fit provided by the two estimated regression equations.
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