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The following table is partial probability distribution for the MRA Company's projected profits ( x= profit in $1000s ) for the first year of operationx f(x)-100 .100 .2050 .30100 .25150 .10200 ?find the proper value for f ( 200 )
20 turn out to be over 65 inches tall, you get $20. Which is better: a sample of size 100 or a sample of size of 1,000? Choose one and explain. Does the law of average relate to the answer you give?
Assume that sigma = 60, choose an alpha level, and perform a hypothesis test to determine whether this is good evidence to conclude that the mean score for all young men is less than 275.
Identify the variable being measured and describe the sample as it relates to the population.
Compute an exponential smoothing forecast with a =.20, an adjusted exponential smoothing forecast with a = .20 and B =.20 and a linear forecast. Compare the three forecast, using MAD and average error (E) and indicate which seem to be most accurat..
The lifetime (hours) of an electronic device is a random variable with the exponential probability density function:
What do confidence intervals represent? What is the most controllable method of increasing the precision of or narrowing the confidence interval?
Explain briefly and in nontechnical language what "a significant difference (P
How would you apply radical expressions in everyday life? Give an example of the expression.
One thing you have learned is that the tangency portfolio will give you the maximum Sharpe ratio. Consequently, you have constructed such a portfolio. What are you portfolio weights.
What is the mean value of a geometric random variable? What is the mean value of N, the number of tosses of a fair coin until the fourth head occurs?
A campus researcher wanted to investigate the factors that affect visitor travel time in a complex. multilevel building on campus.
Assume that you go to the drive through window at Wendy's and place an order. Two friends of yours independently place orders at the drive through window at the same Wendy's.
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