Question: #1 multiple choice please, asap:) Formulas (click on the link) Question 1 (1 point) Suppose x = 15, s=4 and n=20. What is the 90%

#1 multiple choice please, asap:)

Formulas (click on the link) Question 1 (1 point) Suppose x = 15, s=4 and n=20. What is the 90% confidence interval for J. Please choose the best answer. O a) 18.60

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