You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 40 bacteria reveals a sample mean of ¯x=76x¯=76 hours with a standard deviation of s=6.8s=6.8 hours. You would like to estimate the mean lifespan for this species of bacteria to within a margin of error of 0.5 hours at a 90% level of confidence. What sample size should you gather to achieve a 0.5 hour margin of error? Round your answer up to the nearest whole number. n = bacteria

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Q: Question 5 You are a researcher studying the lifespan of a certain species of bacteria. A…

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Q: You are a researcher studying the lifespan of a certain species of bacteria.  A preliminary sample…

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Q: You are a researcher studying the lifespan of a certain species of bacteria.  A preliminary sample…

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Q: You are a researcher studying the lifespan of a certain species of bacteria.  A preliminary sample…

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Q: QUESTION 20 It was found that the mean annual turnover rate of the Aspirin medicine bottle is 16.…

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Q: QUESTION 20 It was found that the mean annual tumover rate of the Aspirin medicine bottie is 24. The…

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A: Test statistics =(Sample mean-previois mean)×sqrt(sample size)/sd

Q: You are a researcher studying the lifespan of a certain species of bacteria.  A preliminary sample…

A: