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The height of women ages? 20-29 is normally? distributed, with a mean of 64.8 inches. Assume sigma σequals
=2.4 inches. Are you more likely to randomly select 1 woman with a height less than 66 inches or are you more likely to select a sample of 26 women with a mean height less than 66? inches? Explain. Complete parts? (a) through? (c) to find the answer to the question.
?(a) What is the probability of randomly selecting 1 woman with a height less than 66? inches?
?(b) What is the probability of selecting a sample of 26 women with a mean height less than 66? inches?
?(c) Are you more likely to randomly select 1 woman with a height less than 66 inches or are you more likely to select a sample of 26 women with a mean height less than 66? inches?
Explain how you would change the simulation procedure if the assumption was that everyone was randomly guessing, so that the probability of a correct guess was .20 each time.
in order to provedisprove the null hypothesis that there is no salary discrimination you obtain random samples of male
athe manager hires you to analyze the data she collects and the results for the above questions are as
Suppose that by the end of 2009, that percentage was 85%. If a sample of 10 U.S. adults is selected, what is the probability that:
Jack is doing a project in educational psychology. Before the experiment, he rank-orderes all his participants according to achievement test scores.
US Cities. Data from 50 large U.S. cities show the mean January Temperature and the Latitude. Describe what you see in the scatterplot.
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In addition, the gender of the respondent is noted. After analyzing the results the following table of joint probabilities was produced: Find the probability that a customer who rates Windsor as excellent is a man. 0.45
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For a two-tailed test of hypothesis (.01 significance level) to determine if there is a difference in the population means, the degrees of freedom are
the driving distance for the top 100 golfers on the pga touris between 284.7 and 310.6 yards. assume that the driving
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