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At the present we are able to fit continuous data with several different models. One way to check the adequacy of the fit is with a probability plot. Consider that following small data set consisting of five observations.
1.1 2.2 1.6 1.3 3
(a) Construct a probability plot for each possible model.
(b) Based on the plots in part (a), which model would you prefer? Explain.
(c) Fit the model you preferred (e.g., if you picked the exponential, exactly which exponential distribution would you use to describe the data?)
(d) Using the model in part (c), estimate the probability of obtaining a value from this population that is less than l.
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At the .05 significance level, is there a difference in the proportion of viewers watching the three channels?
Can you provide a clear, concise interpretation for the slope coefficient on price? Is that coefficient significantly different from zero? How do you know that?
Normal approximation to the Binomial distribution - Evaluate the probability that at least 195 of the students are female.
The probability that Pete will catch fish when he goes fishing is .8. Pete is going to fish three days next week. Define the random variable x to be the number of day Pete catches fish. (hint. binomial distribution)
It was found that 59 of the 86 abnormal births were among the 202 pregnancies complicated during the first trimester; the remaining 27 were born to mothers who contracted the virus after the first trimester. Can it be concluded that the ri..
the managers of a brokerage firm are interested in finding out if the number of new clients a broker brings into the
Calculate the control limits for a c chart when Ubar = 3.0%, n = 60, and you collect one sample per hour for 40 hours of production. (2 sets of control limits required, x bar and range)
Determine the strength of the causal relationship between monthly sales and new home construction by using correlation.
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in a certain city the daily consumption of electric power in millions of kilowatt-hours is a random variable x having a
using a significance level of .05, test the hypothesis that the intake of linoleic acid in this group is lower than that of the general population. Also, compute a p-value for the hypothesis test.
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