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Katrina wants to estimate the proportion of adults who read at least 10 books last year. To do? so, she obtains a simple random sample of 100 adults and constructs a?95% confidence interval. Matthew also wants to estimate the proportion of adults who read at least 10 books last year. He obtains a simple random sample of 400 adults and constructs a? 99% confidence interval. Assuming both Katrina and Matthew obtained the same point? estimate, whose estimate will have the smaller margin of?error? Justify your answer.
find the length and width of a rectangle with the area of 72yd^2
a garden shop wishes to prepare a supply of special fertilizer at a minimal cost by mixing two fertilizers a and b. the
Sketch a graph of the solid that is produced by revolving the region enclosed by the graphs about the x-axis. Set up the integral that will give you the volume of the sold.
1. Use Gaussian elimination to determine if each of the following linear systems is consistent. Then use Gauss-Jordan elimination to solve the consistent linear systems. Use Notion 1.4.9 to denote the elementary row operations that you used for ea..
The consultant who advised the city on this project predicted the parking revues would average $130 per day. Based on your confidence interval, do you think the consultant was correct? Why?
a rectangle has an area of 72 square meters and a side length of 9 meters. what is the perimeter of the
Susan has 400 yards of fencing and wishes to enclose a rectangular area. Express the area of the rectangle as a function of the width of the rectangle.
your company is thinking about acquiring another corporation. you have two choices-the cost of each choice is 250000.
What are examples of variables that follow a binomial probability distribution? What are examples of variables that follow a Poisson distribution?
Write the expression in the standard form a + b i. First convert to rectangular form--- calculate the magnitude-- find reference angle--then the argument of z---
complete solutions. ltbrgt
A grade has 81 girls and 72 boys. The grade split into groups that have the same ratio of girls to boys as the whole grade. How many girls are in a group that has 16 boys
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