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A criminologist developed a test to measure recidivism, where low scores indicated a lower probability of repeating the undesirable behavior. The test is normed so that it has a mean of 140 and a standard deviation of 40.
What proportion of respondents should score above 190?
What is your conclusion based on both the p-value and critical-value approaches and what is the p- value, and what is your conclusion?
question the scores on an exam are normally distributed with micro 30 and s 7. show your working.a what percent of
Test the implementation with the following values of p = 2,3,5 on the following time-series:
the average hourly wage of workers at a fast food restaurant is 6.50hr with a standard deviation of 0.45. assume that
Let X1, ..., Xn be i.i.d. with the Lebesgue p.d.f. ?x?-1I(0,1)(x), where ? > 0 is unknown.
(a) What is the distribution of Y? (b) Sketch the density function of Y, labeling the mean and standard deviation. (c) Give a range of values that is almost certain to contain Y.
10 cobalts are ramdomly selected and the miles per gallon for each car are recorded. What is the probability that the mean miles per gallon exceeds 34 miles per gallon?
Describe each set of data with a histogram (use the same class intervals on both histograms) the mean, standard deviation.
Find the first and third quartiles for a standard normal distribution. Find the inner fences for a standard normal distribution
a 10 minute radiation count gives a statistical uncertainty of 2.8 relative uncertainty. how much additional time must
urban travel times and distances are important factors in the analysis of traffic flow patterns. a traffic engineer in
Most people living on the Gulf Coast of the United States would prefer to know the prediction errors in miles rather than nautical miles. Explain why converting the errors to miles would not change the correlation between Prediction Error and Year..
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