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Consulting income at Kate Walsh Associates for the period of Feburary-July has been as follows:
(income in 1000's)
Feb. 70.0Mar. 68.5Apr. 64.8May 71.7Jun. 71.3Jul. 72.8
Use exponential smoothing to forcast Aug. income. Assume that the initial forecast for Feb. is $65,000. The smoothing constant selected is x=0.1
For each of the following situations, indicate the appropriate measure, incidence rate or prevalence rate and the numerical value of the rate.
Critically discuss the difference among strategic, long-term, and short-term objectives? What is the relationship between objectives and goals? What are examples of this relationship?
Determine and interpret a 95% confidence interval for the mean amount of time Americans age 15 or older spend eating and drinking each day.
Find the probability of winning jackpot?
Critically discuss some examples of descriptive statistics? Why are they used in research? What is a confidence interval?
We want to test the hypothesis that the population variances are equal.
What is the probability that a cereal would either high calorie or high fiber? In other words, what is P(high calorie or high fiber)?
A sample of n observations is taken from a population. When performing statistical inference about a population variance, the appropriate chi-square distribution has:
What is the probability you pick a plum and Which of the following is a legitimate probability distribution for this situation
Consider the following news headline, "Cigarette Smokers Make Lower College Grades than Nonsmokers" The news article goes on to say that researchers at a university collected information on rate of cigarette smoking (total number of cigarettes sm..
Let x1, ..., xn be a random sample from an exponential distribution, X ~ EXP(theta) a) If x(bar) = 17.9 with n = 50, then find a one-sided lower 95% confidence limit for theta.
If there are 5 choices for a question and there is a 50% chance that the student knows the answer, what is the probability that the student knew the answer to a question he correctly answered?
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