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Would you suspect that the IDEA surveys sent to South students each term could be biased in the responses received? Why or why not?
use the following scenario to answer the next 5 questions. millions of americans are subjected to drug testing in the
Assuming that the standard deviation and the normal shape are unchanged, to what level must the mean reduce so that 20 gallons per week is the third quartile rather than the mean?
The owner of a small computer store personally sells one computer per week on the average. Use the Poisson distribution to find the probability of randomly selecting a week in which she personally sold three computers.
a sample of 65 observations is selected from one population with a population standard deviation of .75. the sample
You might find the probabilities using the Table or software of your choice. Please explain how you obtained your results.
In all, 53 say "good." Does the poll give reason to conclude that more than half of all seniors think their job prospects are good? The hypotheses for a test to answer this question are?
Is the sample a part of the population or the population apart of the sample? Why would researchers just not use the entire population to be more accurate? Can you give an example of a sample from a given population?
Is there evidence to reject the hypothesis that the apartments are equally distributed between 1-bedroom, 2-bedroom, and 3-bedroom apartments, at alpha = .05?
you conducted a chi-square goodness of fit test in your asci 691 capstone project. unfortunately you did not get the
question acid rain has caused many lakes to become more acidic. a lake is considered nonacidic if the ph level is
the average lifetime of a light bulb is 3000 hours with a standard deviation of 696 hours. a simple random sample of 36
a professor measures the time x that students take to complete an examination and the score y that the students
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