00S4#3You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 40bacteria reveals a sample mean ofto estimate the mean lifespan for this species of bacteria to within a margin of error of 0.4 hours at a 90%level of confidence.74 hours with a standard deviation of s = 4.8 hours. You would likeWhat sample size should you gather to achieve a 0.4 hour margin of error? Round your answer up to thenearest whole number.| bacteria= uQuestion Help:DVideo Message instructorSubmit QuestionMacBook Pro000&%2309RT

From the provided information, Standard deviation (s) = 4.8 Confidence level = 90% Margin of error…

Answered: You are a researcher studying the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 30 bacteria reveals a sample mean of = 66 hours with a standard deviation of s = 6.6 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. %3D What sample size should you gather to achieve a 0.75 hour margin of error? Round your answer up to the nearest whole number. bacteria = u > Next Question MacBook Pro
You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of 35 bacteria reveals a sample mean of = 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 0.55 hours at a 90% level of confidence. What sample size should you gather to achieve a 0.55 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 40 bacteria reveals a sample mean of ¯x=64x¯=64 hours with a standard deviation of s=4.2s=4.2 hours. You would like to estimate the mean lifespan for this species of bacteria to within a margin of error of 0.4 hours at a 95% level of confidence. What sample size should you gather to achieve a 0.4 hour margin of error? Round your answer up to the nearest whole number.
A researcher is interested in learning about average online hours per day for Camosun College students. Data is gathered from 50 students - mean online hours is 7.52 with a standard deviation of 2.85. Calculate the 95% CI (or alpha at 0.05) and interpret your results in a full sentence. Now calculate a 99% CI for the above. How does your answer change? If the researcher sampled a group of 24 students and the new calculated mean and standard deviation are the same as with the larger group of 50, would the 99% CI change from b above? If yes, in what way?
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=74x¯=74 hours with a standard deviation of s=4.2s=4.2 hours. You would like to estimate the mean lifespan for this species of bacteria to within a margin of error of 0.4 hours at a 95% level of confidence. What sample size should you gather to achieve a 0.4 hour margin of error? Round your answer up to the nearest whole number.
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¯=66hours with a standard deviation of s=5.4s=5.4hours. 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 99% 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
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
A manufacturer of car batteries claims that the life of his batteries have a standard deviation equal to 0.9 years if a random sample of 10 of these batteries have a standard deviation of 14.4 months do you think that population standard deviation exceeds 0.81 years. Explain your results.
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
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=78x¯=78 hours with a standard deviation of s=5.6s=5.6 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 95% 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.
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=78x¯=78 hours with a standard deviation of s=4.4s=4.4 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 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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