Which of the following is true about the Student t-distribution?As sample size increases, the Student-t distribution becomes more and more similar to the standard normaldistributionIf the population standard deviation is known, we should use critical values from the Student t-distribution tocompute confidence intervals for the population mean.(Ỹ − µ)/(0/√ñ) is distributed exactly as Student t-distribution even if X is not normally distributed.If X is normally distributed and the sample size is small, we should not use critical values from the Student t-distribution to compute confidence intervals for the population mean.

The question is about t distribution Introduction : Student t distribution : When the data is…

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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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Suppose a population has a standard deviation of 10. Assume that we continue to select groups of 100 individuals from the population and calculate the sample means. The variation among all these sample means is measured by o/v(n). Compare the distribution of single observations (x) with that of the means x. (That is, compare the histograms of x and x.) We can conclude that the distribution of x is spread out. In other words, averages vary much than individual observations. less; less less; more more; less more; more
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The one in the yellow is the previous tab.
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