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Use the data from the preceding question for the share of total shipment of music that falls in the category of rock music from 1990-2008.
a. Make a forecast for the share of rock music in 2009 using the exponential smoothing method with α = 0.4.
b. Make a forecast for the share of rock music in 2009 using the exponential smoothing method with α = 0.6.
c. Use the MSE to pick the appropriate speed of decline for making a forecast for the share of rock music in 2009.
Write the equation of the regression line.- Explain what the y-intercept of the regression line indicates.- Interpret the slope of the regression line.
This is Epidemiology. Can you answer? Consider a health issue of concern or interest to you. Identify two source of surveillance data for that issue. Please state:
Late flights An airline reports that 85% of its flights arrive on time. To find the probability that its next four flights into LaGuardia Airport all arrive.
Explain the bias and sampling error in this study.
Find a probability that a randomly chosen student owns atleast one of the above vehicles. What is the probability that a randomly chosen student does not own a bike.
Form the cumulative percentage distribution and plan a cumulative percentage polygon.
The presenter uses the "flip of the coin" and the "role of the die." These are examples and analogies used in the CTU resources.
The basal diameter of a sea anemone is an indicator of its age, and in a certain population of anemones, the distribution of basal diameters
The inspector samples 12 cases at random, and subsamples 3 cans randomly from each selected case. Estimate the total number of worm fragments, along with a 95% confidence interval.
by the central limit theorem the sampling distribution of x1 - x2 isa. approximately normal for small samplesb.
If, in an analysis of variance, you find that MSTR is greater than MSE, why can you not immediately reject the null hypothesis without determining the F ratio and its distribution? Explain.
SmithCo is a supplier to many brand-name makers of mobile phones. SmithCo manufactures the external shells that enclose mobile phones. State the confidence interval in the form a ± b
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