Question 15 < > 0/1 pt 398 Details You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 35 bacteria reveals a sample mean of = 72 hours with a standard deviation of s = 4.6 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 99% 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. n = bacteria

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HW 5
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Question 15
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0/1 pt 398
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You are a researcher studying the lifespan of a certain
species of bacteria. A preliminary sample of 35 bacteria
reveals a sample mean of = 72 hours with a standard
deviation of s = 4.6 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 99% 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.
n =
bacteria
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Transcribed Image Text:7:42 myOpenMath Home > Math 124 SI 2022 > Assessment HW 5 Progress saved Done Score: 13.6/20 13/16 answered √ Question 15 < 0/1 pt 398 Details You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 35 bacteria reveals a sample mean of = 72 hours with a standard deviation of s = 4.6 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 99% 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. n = bacteria Question Help: Video Message instructor Submit Question myopenmath.com
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 = 72 hours with a standard
deviation of s = 4.6 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 99% 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.
n =
bacteria
Transcribed Image Text: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 = 72 hours with a standard deviation of s = 4.6 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 99% 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. n = bacteria
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