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Suppose that adult women in China have heights that are normally distributed with mean 155 centimeters and standard deviation 8 centimeters. Adult women in Japan have heights which are normally distributed with mean 158 centimeters and standard deviation 6 centimeters. Which country has the higher percentage of women taller than 167 centimeters?
Recognize and describe potential threats (up to 3) to internal validity.
Is there a relationship between sales and newspaper?
A cereal manufacturer sells boxes of cereal that list the weight as 19 oz. A random sample of 60 boxes was taken, with the contents carefully weighed.
Use confidence intervals to determine whether or not (a) we can be 95% certain that the average woman considers herself overweight as compared to her ideal weight.
brief discussion telling why you chose this particular data set to study. As in discussion two, I am hoping that you will choose data that has some relevance to your life.
An environmental agency recently claimed more than 28% of consumers have stopped buying a certain product because of environmental concerns.
A group of teenagers were monitored closely over the period of several weeks to measure how frequently they watched violent television programs.
Evaluate the data below using the Kruskal - Wallis Nonparametric Hypothesis Test. Explain why you chose this particular nonparametric test to analyze your data.
Recognize strategies that were utilized to control for nuisance variables and minimize threats to valid inference making.
Discuss the role of sensitivity analysis in LP. Under what circumstances is it needed, and under what conditions do you think it is necessary?
Jim's average delivery time was 38 minutes whereas Alison's average delivery time was 40 minutes. The respective standard deviations were 5 minutes and 4 minutes.
An educational study uses a simple pre-post design to assess the efficacy of a computer tutor for solving inequalities. Twelve pilot students participate. Each student is given a pre-test, then participates in six sessions using the tutor, then i..
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