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Question: Effects of binge drinking A common definition of "binge drinking" is 5 or more drinks at one sitting for men and 4 or more for women. An observational study finds that students who binge drink have lower average GPA than those who don't. Identify a variable that may be confounded with the effects of binge drinking. Explain how confounding might occur.
a study claims that 85 of bronx high school students experience homework problems. jessie wants to test this claim so
The dollar amount of damage involved in an automobile accident is an exponential random variable with mean 1000. Of this, the insurance company only pays that amount exceeding (the deductible amount of) 400.
the following data presents test scores on a behavioral vignettes test for self-help skill teaching for the primary
A researcher tests whether the political affiliation of individuals is related to or independent of whether they have positive views of the economy.
Which of the following tests analyzes the difference between the means of two independent samples?
Supposed that from a population of 50 banks accounts, we want take a random sample of four account in order to learn about the population, how many different random samples of four accounts are possible?
what trig function has a period of π
The mean income per person in the United States is $40,000, and the distribution of incomes follows a normal distribution.
1) Explain the difference between multiple independent variables and multiple levels of independent variables. Which is better?
Do these data satisfy the assumptions for inference? Explain.- Find the mean and standard deviation of the observed weights.- Create a 95% confidence interval for the mean weight of such bags of chips.
it is decided to measure the resistance of sheets of a certain metal at temperatures x of 100 k 200 k 300 k 400 k and
Assume that the number of calories in 12-ounce soda cans is normally distributed. State the null and alternative hypotheses to test the manufacturer claim.
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