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As part of a study to determine factors that may explain differences in animal species relative to their size, the following body masses (in grams) of 50 different bird species were reported in the paper "Temperature and the northern distribution of wintering birds" by Richard Repasky. Ecology: 72(6), 1991: pp 2274-2285. © by the Ecology Society of America.
Does the distribution of the body masses appear to follow a normal distribution? Provide both a graphical and quantitative assessment.
The company you work for employs 585 assembly-line workers - 526 men and 59 women. 16 men and 10 women have been laid off.
Recognize strategies that were utilized to control for nuisance variables and minimize threats to valid inference making.
suppose iq scores were obtained from randomly selected twins. for 20 such pairs of people the linear correlation
The data in the next table resulted from an experiment that used a completely random design. Test the null hypothesis that u1 = u2 = u3, where ui represents the true mean for treament i, against the alternative that at least two of the means differ..
At the 0.05 level of significance, is there evidence to suggest that the population mean waiting time to check out is less than 10.73 minutes?
assume there are 18 homes in the quail creek area and 9 of them have a security system. four homes are selected at
Then turn up cards from the top until the first ace appears. What is the expected value of the number of cards required to produce the first ace?
given a sample size of 34 with sample mean of 660.3 and stand dev of 104.9 we have the hypotheseisnull is h0u700alt hyp
Suppose the population is normally distributed they make a decision to do a hypothesis test.
In the United States, sudden infant death syndrome (SIDS) is one of the leading causes of postneonatal deaths (those occurring between the ages of 28 days and 1 year).
q1. for the following questions would the following be considered significant if its probability is less than or equal
The support of a real-valued function f on a topological space is the closure of {x : f (x ) /= 0}. Let L be the set of continuous real-valued functions on R with compact support.
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