You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 30bacteria reveals a sample mean of 76 hours with a standard deviation of s = 5.6 hours. You would liketo 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 thenearest whole number.n =bacteriaQuestion Help: D Video=Submit Question

margin of error : E = 0.4590% confidence interval for μ.n = ?σ = 5.6

Answered: You are a researcher studying the…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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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 = 70 hours with a standard deviation of 8 = 6 hours. You would like to estimate the mean lifespan for this species of bacteria to within a margin of error of 0.6 hours at a 95% level of confidence. What sample size should you gather to achieve a 0.6 hour margin of error? Round your answer up to the nearest whole number. n = bacteria
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You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 40 bacteria reveals a sample mean of i = 66 hours with a standard deviation of s = 5.8 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 99% 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. n = bacteria Question Help: D Video Submit Question
You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 35 bacteria reveals a sample mean of ī = 76 hours with a standard deviation of s = 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. n = bacteria
You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 30 bacteria reveals a sample mean of i = 70 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 0.75 hours at a 95% level of confidence. What sample size should you gather to achieve a 0.75 hour margin of error? Round your answer up to the nearest whole number. n = bacteria Question Help: D Video Check Answer
An advertising agency that serves a major radio station wants to estimate the mean amount of time that the station’s audience spends listening to the radio daily. From past studies, the standard deviation is estimated as 45 minutes. What sample size is needed if the agency wants to be 99% confident of being correct to within ±5 minutes?
You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 25 bacteria reveals a sample mean of to estimate the mean lifespan for this species of bacteria to within a margin of error of 0.45 hours at a 95% level of confidence. 66 hours with a standard deviation of s = 6.6 hours. You would like 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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