Mathematics, 04.12.2020 03:10 Unstinct
A researcher wishes to estimate the percentage of adults who support abolishing the penny, What size sample should be obtained if he wishes the estimate to be within 4 percentage points
with 99% confidence it
(a) he uses a previous estimate of 36%?
(b) he does not use any prior estimates?
Answers: 1
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Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.
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Mathematics, 21.06.2019 18:10
The number of branches on a tree demonstrates the fibonacci sequence. how many branches would there be on the next two levels of this tree? 13 | | | m branches
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Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
Mathematics, 22.06.2019 04:30
What is the measure of angle lkj ? round to the nearest whole degree
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A researcher wishes to estimate the percentage of adults who support abolishing the penny, What size...
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