1. A sample of size n = 121 produced the sample mean of =30. Assuming the population standard deviation o = 4,compute a 95% confidence interval for the population meanu.2.Giventhefollowingdata:6.-33534Construct a 90 % confidence interval estimate for thepopulation mean.3. A random sample of 750 people shows that 150 areleft-handed. Construct a 99% confidence interval forthe true proportion of left-handers.4. How large a sample would be necessary to estimatethe true proportion defective in a large populationwithin 5%, with 95% confidence? (Assume a pilotsample yieldsp = 0.5)5. Write a short note on point estimate and confidence intervalestimate.

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Math

Statistics

1. A sample of size n = 121 produced the sample mean of 30. Assuming the population standard deviation o = 4, compute a 95% confidence interval for the population mean µ.

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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