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Suppose you want to collect a sample of certain size from a continuous population to satisfy given confidence level and margin of error. What formula do you use to determine the sample size if you know the population proportion?
Adams High School has 171 freshman, 189 sophomores, 212 juniors, and 238 seniors. If two students are selected at random without replacement, what is the probability of selecting a freshman on the first selection and a senior on the second selecti..
Explain the main differences among integers, rational numbers, real numbers, and irrational numbers. How are these used in everyday life? How would you explain the use of each to someone who did not know about the differences?
Find the standardized test statistic t for a sample with n = 12, x = 20.6, s = 2.1, and alpha = 0.01 if Ha:mean does not equal 21.1 Round your answer to three decimal places.
Prove using mathematical induction.
In what fundamental way does the solution set of a system of linear equations differ from the solution set of a system of linear inequalities?
A baseball is hit from a height of 3 feet with an initial speed of 120 feet per second at an angle of 30 degrees above the horizon. Find the vector-valued function describing the position of the ball t seconds after it is hit.
the length of a second side of a triangle is 2 inches less than the length of the first side. The length of the third side is 12 inches more than the first side. The perimeter of the triangle is 73 inches. Find the length of each side of the trian..
Find an equation of the tangent plane to the given surface at the specified point.
Which two variables have the strongest strength of relationship?
What are all the values that a standard deviation s can possibly take?
A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with a standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at this college. Give the 95% confidence interval.
Kira owes $6125 and agrees to pay $175 a month until paid. Let A represent the amount owed (in dollars) and let N represent the number of payments made.
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