When we regress a variable Y on another variable X, which of the following will NOT lead to a wider confidence interval for the slope coefficient?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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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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When we regress a variable Y on another variable X, which of the following will NOT lead to a wider
confidence interval for the slope coefficient?
A smaller sample variance of X
O A smaller sample size
O None of the presented possible answers are correct.
O A larger standard error for the slope coefficient estimate.
O Choosing a larger significance level
Transcribed Image Text:When we regress a variable Y on another variable X, which of the following will NOT lead to a wider confidence interval for the slope coefficient? A smaller sample variance of X O A smaller sample size O None of the presented possible answers are correct. O A larger standard error for the slope coefficient estimate. O Choosing a larger significance level
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