(1 point) A random sample of 70 observations produced a mean of x = 39.5 from a population with a normal distribution and astandard deviation o = 2.14.(a) Find a 95% confidence interval for u(b) Find a 99% confidence interval for u(c) Find a 90% confidence interval for u@へ回■42)Type here to search1718144f6f4f5f3esc&%734P00...LOR%24..... Problem(1 point) A random sample of n measurements was selected from a population with standard deviation o = 13.3 and unknown meanu. Calculate a 95 % confidence interval for u for each of the following situations:(a) n = 45, T = 91.6(b) n = 65, x = 91.6%3D(c) n = 85, = 91.6(d) In general, we can say that for the same confidence level, increasing the sample sizethemargin of error (width) of the confidence interval. (Enter: "DECREASES", "DOES NOT CHANGE" or "INCREASES", without thequotes.)@へ回■台 4earch2.12f10fe............

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(1 point) A random sample of 70 observations produced a mean of x = 39.5 from a population with a normal distribution and a standard deviation o = 2.14. (a) Find a 95% confidence interval for u (b) Find a 99% confidence interval for u %23 (c) Find a 90% confidence interval for u

(1 point) A random sample of 70 observations produced a mean of x = 39.5 from a population with a normal distribution and a standard deviation o = 2.14. (a) Find a 95% confidence interval for u (b) Find a 99% confidence interval for u %23 (c) Find a 90% confidence interval for u

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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(1 point) A random sample of 70 observations produced a mean of a 39.5 from a population with a normal distribution and a standard deviation o = 2.14. (a) Find a 95% confidence interval for u (b) Find a 99% confidence interval for (c) Find a 90% confidence interval for
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