A sample of n = 7 scores is selected from a population with an unknown mean ( µ ). The sample has a mean of M = 40 and a variance of s 2 = 63. Which of the following is the correct 95% confidence...

A sample ofn = 7 scores is selected from a population with an unknown mean (µ). The sample has a mean ofM = 40 and a variance ofs
² = 63. Which of the following is the correct 95% confidence interval forµ?

Group of answer choices

µ = 40 ± 7.341