Mathematics, 21.05.2020 21:05 ntangpricha
You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 30 bacteria reveals a sample mean of x=74 hours with a standard deviation of s =5.4 hours. You would like to estimate the mean lifespan for this species of bacteria to within a margin of error of 0.65 hours at a 99% level of confidence. What sample size should you gather to achieve a 0.65 hour margin of error? Round your answer up to the nearest whole number.
Answers: 1
Mathematics, 21.06.2019 20:00
How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5
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Mathematics, 21.06.2019 23:00
Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.
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Anew obstacle course is home to several new types of challenging obstacles. one such obstacle is traversing a 15-stair staircase. to make it more challenging, the stairs are not uniformly spaced. rather, the vertical space between consecutive stairs for the first 10 stairs is 113 feet and the vertical space for the last 5 stairs is 134 feet. what is the total vertical distance traveled ascending and descending the entire 15-stair staircase?
Answers: 3
You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of...
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