Mathematics, 09.04.2020 23:53 glstephens04
Suppose that 21% of the subscribers of a cable television company watch the shopping channel at least once a month. The cable company is trying to decide whether to replace this channel with a new local station. A survey of 81 subscribers will be undertaken. The cable company has decided to drop the shopping channel if the sample proportion is less than 0.19. What is the approximate probability that the cable company will drop the shopping channel, even though the true proportion of all subscribers who watch it is 0.21?
Answers: 2
Mathematics, 21.06.2019 14:30
Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!
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Mathematics, 21.06.2019 16:50
Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?
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Mathematics, 21.06.2019 17:40
Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.
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Mathematics, 21.06.2019 20:30
Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.
Answers: 3
Suppose that 21% of the subscribers of a cable television company watch the shopping channel at leas...
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