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As part of a public health survey, a random sample of college students were asked about their weekly drinking habits. The following results were obtained:
b. What percent of the sample reports not drinking?a. Are there independent and dependent variables in this case? If so, what are they? If not, why not?
c. What percent of men report drinking, but having fewer than three drinks per week?
d. What percent of women report drinking, but having fewer than three drinks per week?
e. What percent of men report drinking at least three drinks per week?
f. What percent of women report drinking at least three drinks per week?
g. What percent of the sample reports having at least three drinks per week?
The Texas Transportation Institute at Texas A&M University conducted a survey to determine the # of hours per year drivers waste sitting in traffic.
a a conservationist is interested in knowing whether polar bears in the wild have lower rates of reproduction than
a group of 10 people agree to meet for a lunch at a cafe between 12 noon and 1215 pm. assume that each person arrives
Assume a very large normally distributed population of scores on a test with mean 77 and standard deviation 7.
what does p .05 mean? what are some misconceptions about the meaning of p .05? why are they wrong? should all
what does it mean to say that your score on test one in statistics was in the 90th percentile?
Companies planning to introduce a new product in the market must define the "target" for the product. Age and gender are two of the most important demographic variables. The following two-way describes the age and marital status of American w..
The mean salary, do you think introducing Michael Jordan's last annual salary of more than $30 million would skew this distribution?
A researcher used stepwise regression to create regression models to predict BirthRate (births per 1,000) using five predictors
no children which is equal to value obtained by census. Give z statistic (rounded to two decimal places) and P-value. What do you conclude? (Use = 0.10.).
In order for the blood glucose level of a diabetic to be in the lower 20 percent of all diabetics, that person's blood level must be less than what value?
Whole Foods needs at least 1,000 units of beets. The Ames supplier can supply at least 400 units and the Zearing supplier can supply no more than 900 units. Develop constraints for these conditions.
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