Mathematics, 25.09.2019 19:30 cmaya
The average number of minutes martina spent on homework for a week in november was 32 minutes, with a mean absolute deviation of 3 minutes. with this information, which statement is true?
a. on average, martina spent between 29 and 35 minutes on her homework.
b. martina spent between 29 and 35 minutes each day on her homework.
c. martina's mean time spent on homework was 35 minutes.
d. martina's mean time spent on homework was 29 minutes.
Answers: 2
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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.
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Mathematics, 21.06.2019 22:30
Whats are the trickiest steps to do when adding or subtracting rational expressions? how does knowledge of rational numbers u in adding and subtracting rational expressions?
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The average number of minutes martina spent on homework for a week in november was 32 minutes, with...
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