Question 8

For the confidence interval to be valid, the sample mean must be normally distributed and have standard error $$\frac{s}{\sqrt(n)}.$$

Which of the following is not a condition needed for this to be true?

This exercise is part of the course

Data Analysis and Statistical Inference

The sample is random.,The sample size, 60, is less than 10% of all houses.,The sample distribution must be nearly normal.

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