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The Practice of Statistics | 5th Edition | ISBN: 9781464108730 | Authors: Daren S. Starnes, Josh Tabor
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Which of the following is not one of the conditions that must be satisfied in order to

Chapter 12, Problem T12.1

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QUESTION:

Which of the following is not one of the conditions that must be satisfied in order to perform inference about the slope of a least-squares regression line? (a) For each value of x, the population of y-values is Normally distributed. (b) The standard deviation s of the population of y-values corresponding to a particular value of x is always the same, regardless of the specific value of x. (c) The sample sizethat is, the number of paired observations (x, y)exceeds 30. (d) There exists a straight line y = a + bx such that, for each value of x, the mean my of the corresponding population of y-values lies on that straight line. (e) The data come from a random sample or a randomized experiment. T12

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QUESTION:

Which of the following is not one of the conditions that must be satisfied in order to perform inference about the slope of a least-squares regression line? (a) For each value of x, the population of y-values is Normally distributed. (b) The standard deviation s of the population of y-values corresponding to a particular value of x is always the same, regardless of the specific value of x. (c) The sample sizethat is, the number of paired observations (x, y)exceeds 30. (d) There exists a straight line y = a + bx such that, for each value of x, the mean my of the corresponding population of y-values lies on that straight line. (e) The data come from a random sample or a randomized experiment. T12

ANSWER:

Step 1 of 2

We have to identify which of the following is not one of the conditions that must be satisfied in order to perform inference about the slope of a least-squares regression line:

 

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