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Before 1918, approximately 60% of the wolves in the New Mexico and Arizona region were male, and 40% were female. From 1918 to the present, approximately 67% of wolves in the region are male, and 33% are female. (a) Before 1918, in a random sample of 9 wolves spotted in the region, what is the probability that 6 or more were male?probability that 6 or more were female. probability that fewer than 3 were female.For the period from 1918 to the present, in a random sample of 9 wolves spotted in the region, what is the probability that 6 or more were male.
Write a short report dicussing the claim that average diastolic blood pressure in 1958 (variable dbp58) is the same for men who were alive in 1968 and for men who were not.
Assume that you want to use a 0.05 significance level to test the claim that paired sample data come from a population for which the mean difference is Ud = 0. Find (a) d-, (b) Sd, (c) the t test statistic, and the critical values.
A manager of a small store wanted to discourage shoplifters by putting signs around the store saying "Shoplifting is a crime!" However, he wanted to make sure this would not result in customers buying less.
The director of a state agency believes that the average starting salary for clerical employees in the state is less than $30,000 per year. To test her hypothesis
Describe a 5-step hypothesis test for two variances for a particular claim related to your work or life environment. You need to state the claim, define the null and alternate hypothesis, identify the test significance and the test statistic, and ..
Based on this, what is the probability that the mean weight of the bales in a sample of n=64 bales will be between 78 and 82 pounds?
A person purchases a package of 10 ball-point pens which, unknown to the purchaser, contains 4 defective pens. Of the first 2 pens used by the purchaser
Analysis of variance- One way classification - Are there differences among these 3 drugs with respect to how long they are retained in the body?
Use Chebyshev's theorem to find what percent of the values will fall between 162 and 292 for a data set with a mean of 227 and standard deviation of 13.
Population have at least some college education. choose 10 persons at random. Find the probability that at least 5 do not have any college education.
Where does the p-value come from for the spatial scan statistic used in SaTScan? Explain how Monte Carlo simulation is used to derive a p-value for a cluster.
Five children under twelve are selected at random. The probability that the average number of hours that they spend each week watching television is at least 30 is about?
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