Mathematics, 17.06.2020 23:57 hanniahrnz12345
Penny walked 50 yards in 30 seconds. At this pace, how many miles would she walk
in one hour? Show all calculations to get full credit.
CONVERSIONS:
1 yard = 3 feet
5,280 feet = 1 mile
1 hour = 60 minutes
1 minute = 60 seconds
Answers: 3
Mathematics, 21.06.2019 19:20
Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.
Answers: 3
Mathematics, 21.06.2019 20:30
Acircus act has 3 times as many elephants as acrobats. jorge noticed that all together there were 56 legs in the circus ring. how many elephants were in the show?
Answers: 2
Mathematics, 21.06.2019 20:50
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
Penny walked 50 yards in 30 seconds. At this pace, how many miles would she walk
in one hour? Show...
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