Mathematics, 14.04.2020 21:14, mrgandollins5222
You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 35 bacteria reveals a sample mean of ¯ x = 74 x¯=74 hours with a standard deviation of s = 5.4 s=5.4 hours. You would like to estimate the mean lifespan for this species of bacteria to within a margin of error of 0.45 hours at a 90% level of confidence. What sample size should you gather to achieve a 0.45 hour margin of error? Round your answer up to the nearest whole number.
Answers: 1
Mathematics, 21.06.2019 17:00, TheOriginal2x
What is the arc length when θ =pi over 3 and the radius is 5 cm? (5 points) 5 pi over 3 cm 10 pi over 3 cm 16 pi over 3 cm pi over 3 cm
Answers: 1
Mathematics, 21.06.2019 21:00, ballbritez
Which line is parallel to the line that passes through the points (2, –5) and (–4, 1) a. y=-x+5 b. y=-2/3x+3 c. y=2/3x-2 d. y=x+5
Answers: 2
You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of...
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