Question 1 1 pts You need to make a confidence interval for an estimate of the s

Question

Question 1 1 pts You need to make a confidence interval for an estimate of the sample mean where the only information you are given is the data set you are computing the estimate of the mean for. Which of the following statements is true? 0 You need to compute the sample standard deviation s because the true variance is unknown. 0 You don't need to compute the sample variance because you will use a variance of 1 because you will standardize your distribution to be N(0,1) 0 You don't need to compute the sample standard deviation because you won't use it to build a confidence interval anyway.

Explanation / Answer

The 1st option is the correct answer. The true variance, or the population variance is unknown. That is why why we need to consider the sample variance to build the CI.

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