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In a region, 80% of the population have brown eyes. If 12 people are randomly selected, find the probability that at least 10 of them have brown eyes. Is it unusual to randomly select 12 people and find that at least 10 of them have brown eyes? Why or why not?
The probability that at least 10 of the 12 people selected have brown eyes is ____. (Round to three decimal places as needed.)
What minimum sample size will be required if they want to be 99% confident that the sample proportion will not differ from the true population proportion by more than 5%?
Cough-a-Lot children's cough syrup is supposed to contain 6 ounces of medicine per bottle. However since the filling machine is not always precise, there can be variation from bottle to bottle. The amounts in the bottles are normally distribut..
Many vehicles used in space travel are constructed with redundant systems to protect the flight crew and their equipment. Find the probability that this shuttle component functions successfully if n = 2.
would this prove that they are exceeding their goal, using α = .025?
in a given population of two-earner malefemale couples male earnings have a mean of 40000 per year and a standard
If the board wants to set the passing score so that only the best 80% of all applicants pass, what is the passing score? Assume that the scores are normally distributed. Round to the nearest whole number.
What is the probability that the student is married, given the student was female? Your answer should be a decimal fraction accurate to 3 decimal places.
Need help discussing Regression Analysis and Bulgaria. I am conducting a country analysis and need to discuss this. Please cite any references used.
Multiple choice questions based on regression - multiple coefficient of determination
In answering this questions, set up and test appropriate hypotheses using D = 0.01. Construct a 99 percent confidence interval on the true mean difference in breaking strength.
q1. show that for a sample of n 39 the smallest and largest z values are - 1.96 and 1.96 and the middle i.e. 20th z
suppose a simple random sample of size 43 is selected from a population with sigma 8. find the value of the standard
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