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Question: According to national data, about 10% of American college students earn a graduate degree. Using this estimate, what is the probability that exactly 25 undergraduates in a random sample of 200 students will earn a college degree? Hint: Use the normal approximation to the binomial distribution, where p = .10 and q = .90.
Explain the difference between a discrete and a continuous random variable. Give two examples of each type of random variable.
a companys raw data sample of weekly salaries in dollars is shown
The F-value is a ratio of two variance estimates. What variance is used as a numerator of the ratio?
Five cards are drawn from an ordinary deck without replacement. Find the probability of getting:
A buyer suspects that the factory's claimed life of mean is 3000 hours for these light balls are too high. To check the claim, the factory tests 50 of these light balls and gets a mean lifetime of sample mean = 2988 hours and a standard deviation ..
an inspector correctly identifies defective products 90 of the time. for the next 10 products the probability that he
a crossover trial is planned to evaluate the impact of an educational intervention program to reduce alcohol
Using this information, develop the following foundational components for a proposed analysis:
The numbers of snake-approach responses after treatment are listed in the table. Name the independent variable and its levels. Name the dependent variable. Compute SStot, SStreat and SSerror.
for each equation below identify what type of equation it is linear or exponential which variable is the independent
in a randomized trial who should be blinded to which treatment group the patient is assigned?1. the patient2. the
The Motion Picture Association of America studies the ethnicity of moviegoers to understand changes in the demographics of moviegoers over time. Here are the numbers of moviegoers (in millions) classified as to whether they were Hispanic, African-..
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