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Twenty five percent of the U.S. Military Academy cadets are female. If 6 cadets are randomly selected from the corps of cadets, what is the probability that 2 will be female? What is the probability that 2 or fewer will be females?
Hypothesis test in the research hypothesis is specific about the difference but with no direction specified for the difference is a (n)?
Would like to know what factors influence the annual income of a person. What are some of the variables you will look for? How would you collect data on these variables? Is the data qualitative or quantitative? Remember that for each person you find ..
Calculate the ARL and look at the chart to see if the number looks about right. Use the time information in the raw data and your ARL value to calculate how many minutes between a false alarm. Will the operators be happy with this?
What differentiates the two formulas Σ (x - xbar)^2/n-1 from Σ (x - µ)^2/n, and why the difference?
835 elderly people are sampled and .086 are diabetic. With a 90% confidence interval find the proportion of elderly people..0575-.1145
1) A coin is flipped 14 times. Use the normal approximation to the binomial distribution to calculate the probability of a total of 4,5, or 6 heads. Compare this to the binomial probability.
There is some evidence that, in the years 1981-1985, a simple name change resulted in a short-term increase in the price of certain business firms' stocks (relative to the prices of similar stocks). (See D. Horsky and P. Swyngedouw,..
Describe a situation where it would be appropriate to use forecasting.
Construct a 88% confidence interval for the mean femininity score of all male hotel managers and estimate the percent change amongst lactating mothers to within ± 0.5% with 99% confidence. How large a sample of nursing mothers do you need?
Discuss the shape of the distribution of the price of new house
question 1a marine biologist has evidence from other studies that the number of fish is declining in certain lakes
Consider 2 mugs. THe first contains 2 white and 7 black balls, and the second contains 5 white and 6 black balls. We flip a fair coin and then draw a ball from the first mug or the second mug depending on whether the outcome was heads or tails. What ..
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