deviation of s=7s=7 hours. You would like to estimate the mean lifespan for this species of bacteria to within a margin of error of 0.8 hours at a 95% level of confidence. What sample size should you gather to achieve a 0.8 hour margin of error? Round your answer up to the nearest whole number. use excel
deviation of s=7s=7 hours. You would like to estimate the mean lifespan for this species of bacteria to within a margin of error of 0.8 hours at a 95% level of confidence. What sample size should you gather to achieve a 0.8 hour margin of error? Round your answer up to the nearest whole number. use excel
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 5CR
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Question
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=66x¯=66 hours with a standard deviation of s=7s=7 hours. You would like to estimate the mean lifespan for this species of bacteria to within a margin of error of 0.8 hours at a 95% level of confidence.
What
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