Which of the following statements is correct? (a) The t distribution is exactly equal to the standard normal distribution when the sample size is equal to 30 (b) The t distribution is approximately equal to the standard normal distribution when the sample size is 150 (c) The t distribution is exactly equal to the standard normal distribution when the sample size is less than 30 (d) The t distribution is approximately equal to the standard normal distribution when the sample size is less than 30

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Which of the following statements is correct?


(a) The t distribution is exactly equal to the standard normal distribution when the sample size is equal to 30
(b) The t distribution is approximately equal to the standard normal distribution when the sample size is 150
(c) The t distribution is exactly equal to the standard normal distribution when the sample size is less than 30
(d) The t distribution is approximately equal to the standard normal distribution when the sample size is less than 30

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