Mathematics, 12.08.2019 17:30 hidagiser
50. pottery an artist experimenting with clay to create pottery with a special texture has been experiencing difficulty with these special pieces. about 40% break in the kiln during firing. hoping to solve this problem, she buys some more expensive clay from another supplier. she plans to make and fire 10 pieces and will decide to use the new clay if at most one of them breaks. a) suppose the new, expensive clay really is no better than her usual clay. what’s the probability that this test convinces her to use it anyway? (hint: use a binomial model.) b) if she decides to switch to the new clay and it is no better, what kind of error did she commit? c) if the new clay really can reduce breakage to only 20%, what’s the probability that her test will not detect the improvement? d) how can she improve the power of her test? offer at least two suggestions.
Answers: 1
Mathematics, 21.06.2019 19:20
1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?
Answers: 3
Mathematics, 21.06.2019 20:00
If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.
Answers: 2
Mathematics, 21.06.2019 21:00
Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)
Answers: 2
Mathematics, 21.06.2019 21:30
Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?
Answers: 3
50. pottery an artist experimenting with clay to create pottery with a special texture has been expe...
Mathematics, 08.10.2019 01:30
English, 08.10.2019 01:30
Mathematics, 08.10.2019 01:30
Social Studies, 08.10.2019 01:30
English, 08.10.2019 01:30
Biology, 08.10.2019 01:30
Physics, 08.10.2019 01:30
Mathematics, 08.10.2019 01:30
Health, 08.10.2019 01:30
Chemistry, 08.10.2019 01:30
Spanish, 08.10.2019 01:30