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In order to calculate confidence intervals and hypothesis tests, it is assumed that the errors are independent and normally distributed with mean zero and _______

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In order to calculate confidence intervals and hypothesis tests, it is assumed that the errors are independent and normally distributed with mean zero and _______

(a) Mean

(b) Variance

(c) SD

(d) KNN

I got this question in homework.

The origin of the question is Linear Regression topic in chapter Commands, Packages, Visualizing Data and Linear Regression of R Programming

1 Answer

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Right answer is (b) Variance

Easiest explanation: In order to calculate confidence intervals and hypothesis tests, it is assumed that the errors are independent and normally distributed with mean zero and variance.

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