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Decide in each case whether the hypothesis is simple or composite:
(a) the hypothesis that a random variable has a gamma distribution with α = 3 and β = 2;
(b) the hypothesis that a random variable has a gamma distribution with α = 3 and β 2;
(c) the hypothesis that a random variable has an exponential density; (d) the hypothesis that a random variable has a beta distribution with the mean μ = 0.50.
The mean amount of time a (unnamed) computer server is down is 18.3 minutes with a standard deviation of 5.7 minutes.
Find the probability that you will (a.) make your first sale on your fifth call, (b.) make your sale on the first, second or third call, and (c.)do not make a sale on your first three calls.
Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.
a machine that cuts corks for wine bottles operates in such a way that the distribution of the diameter of the corks
an east coast manufacturer of printed circuit boards exposes all finished boards to an online automated verification
How large a sample should be tested in order to be 99% confident that the true proportion of inedible fish is estimated to within 7%? Use 2.575 as the critical value for a 99% confidence interval.
Let R be a unique factorization domain then show that prime element R generates a prime ideal.
you have a 20 sided die that you roll an infinite number of times.what is the probability of rolling any number between
the state criminology lab must sometimes estimate a persons height from partial skeleton remains. a random sample of
The mean time to expose a single panel in a circuit-board plant is two minutes with a standard deviation of 1.5 minutes. What is the natural coefficient of variation?
Test whether the weight reducers on average will lose less than 10 pounds using P-value approach.
7. Get the passenger car mileage data from http://lib.stat.cmu.edu/DASL/Data?les/carmpgdat.html (a) Fit a multiple linear regression model to predict MPG (miles per gallon) from the other variables. Summarize your analysis.
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