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The following data represent the maximal head measurements (across the top of the skull) in millimeters of 15 Etruscans (inhabitants of ancient Etruria).
152 147 126 140 135 139 149 140
142 147 132 148 146 143 137
(a) Calculate an unbiased estimate σˆ 2 of the population variance.
(b) Give approximate 95% con?dence interval for the population variance.
(c) Interpret your results and test for normality.
the fox tv network is considering replacing one of itsprime-timecrime investigation shows with a new
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Among 12 adults randomly selected from this area, only 3 reported that their health was excellent. Find the probability that when 12 adults are randomly selected, 3 or fewer are in excellent health.
describe the set of assumptions that you need to make in the application of linear programming
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A United Nations report shows the mean family income for Mexican migrants to the United States is $27,000 per year. A FLOC(Farm Labor Organizating Committee) evaluation of 25 Mexican family units reveals a mean to be $30,000 with a sample standard..
A supplier of 3.5" disks clams that only 1% of the disks are defective. In a random sample of 600 disks, it is found that 3% are defective, but the supplier claims that this is simply a sample fluctuation. At the 0.01 level of significance, test t..
the rank correlation coefficient is used when one isa not interested in drawing inferences from the the studyb
Based on the above data, find a 95% confidence interval for the average score on the 1st quiz.
In quantum mechanics, you will work with the following differential equation:
Perform a hypothesis test by using.04 level of significance to find out if there is a difference between the population means.
Researchers Sync and Smith reported a significant correlation between children's reading level and intelligence measured as an IQ score - Explain these results as if you were writing to a person who has never had a course in statistics.
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