Mathematics, 10.10.2019 00:10 payshencec21
The web logs of a certain website show that the average number of hits in an hour is 75 with a standard deviation equal to 8.6. we can assume that the number of hits in an hour is normally distributed. a) what’s the probability of observing less than 60 hits in an hour? use the normal approximation. b) what’s the 99th percentile of the distribution of the number of hits? use the normal approximation. c) what’s the probability of observing between 80 and 90 hits an hour? use the normal approximation.
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Mathematics, 21.06.2019 19:00, ayeofaygo5168
Witch represents the inverse of the function f(x)=1/4x-12
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Mathematics, 21.06.2019 21:30, mcaninch36
Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.
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Mathematics, 21.06.2019 21:40, dededese2403
Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels. ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0
Answers: 1
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