Suppose a random sample of 10 fish are selected from a lake and their sample mean weight is 3.5 kg. Suppose the distribution of the weights of fish in the lake is normal and the population standard deviation is known to be 1 kg. (i). Construct a 95% confidence interval for the mean weight of all fish in the lake. Show your work. (ii). Write a two-sentence conclusion for the results of the confidence interval calculations. (iii). How large the sample size should be if we want the margin of error of a 95% confidence interval to be no more than 0.1? Show your work.
Suppose a random sample of 10 fish are selected from a lake and their sample mean weight is 3.5 kg. Suppose the distribution of the weights of fish in the lake is normal and the population standard deviation is known to be 1 kg. (i). Construct a 95% confidence interval for the mean weight of all fish in the lake. Show your work. (ii). Write a two-sentence conclusion for the results of the confidence interval calculations. (iii). How large the sample size should be if we want the margin of error of a 95% confidence interval to be no more than 0.1? Show your work.
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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