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Taser Accuracy
Tasers are nonlethal weapons used by police to subdue dangerous people. This electroshock weapon uses electrical current to disrupt control of an individual's muscles. The police forces in England maintain careful records concerning the use of Tasers. Records from 2010-2012 indicate the following.
Is there any evidence to suggest that the true proportion of chest hits is greater in Lancashire than in West Mercia? Use a = 0.01.
a die with 6 facts but only marked two facets with 1 and rest 4 facets with 2 if we throw this die 60 times we expect
The formula for the ratio is the mileage that 14 students drive to work out of 20 students. Compute the central tendency (mean, median, mode) and dispersion (range, variance, standard deviation).
A national survey of engineering school graduates indicates that only 10% of them have had a course in statistics. (a) Find the probability that in a random sample of five engineering grad uates exactly two have had a course in statistics.
Describe how you would attach identification numbers to the patient files; for example, how many digits (and which digits) would you use to indicate the first patient file?
in order to determine an interval for the mean of a population with unknown standard deviation a sample of 61 items is
Suppose that the sales manager of a large automotive parts distributor wants to estimate as early as April the total annual sales of a region. On the basis of regional sales, the total sales for the company can also be estimated.
In the other group 40 out of 80 favored capital punishment. Calculate an appropriate test value to test the hypothesis that the population proportions are the same.
1 consider a resource-allocation problem having the following
(a) Based on the rule of thumb in Section 6, would we be justified in using the approximation? (b) Make the approximation and round to four decimals.
What is the minimum score needed to be in the top 25% on this test? Carry your intermediate computations to at least four decimal places.
Fifty individuals are rated on how open minded they are. The ratings have the values 1, 2, 3, 4 and the corresponding relative frequencies are 0.2, 0.24, 0.4, 0.16, respectively. Compute the mean, variance and standard deviation.
suppose iq scores were obtained from randomly selected siblings. for 20 such pairs of people the linear correlation
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