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One manufacturer's high-quality product rate is 30%. recently, a sample with size 15 products is collected. among them, 3 are with high quality. Can we say the high-quality rate remains 30% using level of significance (alpha symbol)=0.05 ?
We can find that n(pi)=15 x 0.3 = 4.5 <= 5 (in reality, n(pi) is better be much larger than 5), so we do not take the assumption that it is normally distributed. we cannot use z-test.
Suppose the length of a rectangle increases, but the perimeter remains at 70 feet. How does the width change?
After getting a 15% discount on the price of a new chrysler sebring convertible, Helen paid $27,000. What was the original price of the convertible to te nearest dollar?
to determine the number of deer in a game preserve, a conservatioist catches 569 deer, tags them and lets them loose. Later, 400 deer are caught; 200 of them are tagged. How many deer are in the preserve?
The altitude of a triangle is increasing at a rate of 2500 centimeters/minute while the area of the triangle is increasing at a rate of 1000 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 7500 cen..
Franklin has $2,500 in a savings account that pays interest at the rate of 4% annually. How much interest will he earn after one year?
Demonstrate the use of the Pythagorean Theorem in the solution of this problem
Write an equation in slope-intercept form for the line described.
3x x+2 , if x -2. (a) Find the limit from the right and the limit from the left of f (x) as x approaches -2. (b) Is it possible to define f (-2) so that f is continuous at x = -2?
When the ticket price is 7 dollars the average attendance is 45000. When the price is dropped to 5 dollars then the average attendance rises to 50000. Find the demand function and how should the ticket price be set to maximize revenue?
A poster is to have 150 square inches of printed area. If we want a 2 inch margin at the top, and 1 inch margins at the bottom and sides, what dimensions use the smallest amount of paper.
the begaining inventory was 16,004.94 the evening invortory was 17,010.52 purchases for the month is 25,119.11 and the sale for the month 96,808.71. what is the food cost percentage.
Which mover provides a better deal for 2 hours of work? How did you arrive at your answer?
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