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What is the sample space for counting the number of females in a group of n people?
An upper-level sociology class at a large urban university has 120 students, including 34 seniors, 57 juniors, 22 sophomores and 7 freshmen.
prepare a 1400- to 1750-word paper addressing the following explain how internal and external factors affect the four
What kinds of plots are useful in data screening? What can you do if your data do not meet the assumptions of your statistic?
in a large american university in 1969 the male and female professors were sample independently yielding the following
Find the 90% confidence interval fo the mean. Does the confidence interval interpretation agree with the hypothesis testing results? Explain.
How large a sample size will need to be selected if we wish to have a 99% confidence interval with a margin for error of .25 hours?
Suppose 10 balls, numbered 1-10, are to be distributed randomly into 10 boxes. a) What is the probability all 10 balls are placed into one box? b) What is the probability that no boxes are empty?
when only concerned about the results at one end of the distribution curve we use a one-tail test. we generally see a
according to the most recent labor department data 10.5 of engineers electrical mechanical civil and industrial were
Compute the test statistic. Using = 0.05, perform the test using either the critical value approach or the p-value approach. What is your conclusion?
an insecticide company exposes 10000 cockroaches to its newest product and exposes another 10000 to their previous
Select the level of significance, and determine critical, ZCR value.
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