Mathematics, 21.12.2020 06:20 azinanees
It is known that the mean cholesterol level for all the people is 190, and the
standard deviation is 15. We test 100 random smokers! and find that the average
cholesterol level in our sample is 195. Can we claim based on that sample that the
cholesterol level of smokers is higher than that of the general population, if we
need the confidence level a=0.99 to make our claim (use Hypothesis Testing to
answer this question)? (20 points).
Answers: 2
Mathematics, 21.06.2019 12:50
Solve the system by the elimination method. 2x + y - 4 = 0 2x - y - 4 = 0 when you eliminate y, what is the resulting equation? a.x = 0 b.4x = -8 c.4x = 8
Answers: 1
Mathematics, 21.06.2019 16:30
Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation
Answers: 3
Mathematics, 21.06.2019 17:00
The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?
Answers: 1
It is known that the mean cholesterol level for all the people is 190, and the
standard deviation i...
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