Mathematics, 06.05.2020 08:28 giovney
An accountant claims to be able to complete a standard tax return in under an hour. For a random sample of 24 tax returns, the accountant averaged 63.2 minutes. Assume that the population standard deviation is equal to 7.7 minutes and the population is normally distributed. What is the test statistic for the hypothesis test to check accountant's claim
Answers: 3
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If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if
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Mathematics, 21.06.2019 22:30
Ascientist places 24 cells in a petri dish. she knows the cells grow at an exponential rate, doubling in number every hour. how long will it take (in hours) for there to be 1100 cells in the dish? time to 1100 cells: 5.51832530 hours how long will it take to reach 110 cells? time to 110 cells : 2.1963972 hours what is the average rate of change in the number of cells between 9 hours and 11 hours? average rate of change: cells per hour what is the instantaneous rate of change after 7 hours? instantaneous rate of change: cells per hour note: you can earn partial credit on this problem.
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Mathematics, 22.06.2019 00:00
The width of a rectangle is half as long as the length. the rectangle has an area of 18 square feet. what are the length and width of the rectangle?
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Mathematics, 22.06.2019 01:20
The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!
Answers: 1
An accountant claims to be able to complete a standard tax return in under an hour. For a random sam...
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