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Identify the sampling technique used: At a local college, 5 statistics classes are randomly selected out of 20 and all of the students from each class are interviewed.
suppose that 75 of adult americans agree that while downloading music from the internet and then selling it is piracy
Discuss the advantages and disadvantages of at least two (2) sampling methods. Make a recommendation for the best method to sample accounts receivables.
Suppose that x is normally distributed with a mean of 20 and a standard deviation of 15. What is P(-7.45 = x = 54.95)?
Scientist decided to do a study on the population growth of rabbits. Inside a controlled environment, 1000 rabbits were placed - how many rabbits would be there
A randomly selected sample of n = 60 individuals over 65 years old takes a test of memorization skills. The sample mean is x‾= 53, and the standard deviation is σ = 7.2. Give the numerical value of the standard error of the mean.
Students that studied for more than one hour received a c+ or above on the final. Use a .05 significance level to test the professor's claim.
The sponsor of the survey wants you to use the 95 percent confidence level. The estimate is to be within $100. How many families should be interviewed?
16 parts are examined for defects. It is found that 10 are good, 4 have minor defects, and 2 have major defects What is the probability that both are good? What is the probability that exactly one part has a major defect?
The owner of a car dealership wants to determine whether there is a relation between the income level and the type of vehicle purchased in their dealership.
Calculate the probability of XYZ Ltd's being awarded the contract if the probability of the investigation is 0.80 and the probability of ABC Ltd completing research in time is 0.85
1. When using lever systems with hydraulic cylinders, why must the cylinder, be clevis mounted?
a box contains four 40-w bulbs five 60-w bulbs and six 75-w bulbs. suppose that three bulbs are randomly selected. what
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