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The distribution ages for students at the state college is positively skewed with a mean of 21.5 and a standard deviation of 3.
a. What is the probablitiy of selecting a random sample of n=4 students with an average greater than 23 ?
b. What is the probability of selecting a random sample of n=36 students with an average age greater than 23?
c. For a sample of n=36 students what is the probability that the average is between 21 and 22?
you win a game if you roll a die and get a 2 or a 5. you play this game 60 times.a what is the probability that you win
How much should you be willing to pay for this deal? Do you think you would actually pay that much? Why? Expected Value:? Pay it? Why?
A researcher conductued a study of the access speed of 35 hard drives and concluded that his maximum error of estimate was 35. If he were to conduct a second study to reduce the maximum error of estimate to 7, about how many hard drives should he ..
Describe the data for a correlational research study. Explain how correlational research is different from other research evaluating the relationship between two variables.
Required rate of return for a division of an organization that has risk characteristics that differ from the risk characteristics of the overall organization. Which answer choice identifies this description
Ccompute a t-test comparing males' and females' heights. You must determine which type of t-test to compute. Write a short interpretation of the results.
Let denote the sample mean viewing time. What is the probability the sample mean will be within 0.25 hours of the population mean?
The manufacturer of the ColorSmart-5000 television set claims that 95 percent of its sets last at least five years without needing a single repair.
Numbers of people who live in the north, both aboriginal and non-aboriginal. See an inconsistency here within the law. Their use of them - then why would we allow this?
an independent-measures research study uses two samples each with n 12 participants. if the data produce a t statistic
Calculate the standard deviation for this data = since it is a case of grouped data with classes. use group or class midpoints in the formula in place of x values.
a box of tulip bulbs contains six bulbs that produce yellow flowers and five bulbs that produce red flowers. four bulbs
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