Question
William is interested in buying an tablet computer. He visited 7 stores/websites at random and recorded...
William is interested in buying an tablet computer. He visited 7 stores/websites at random and recorded the price of the particular tablet he wants. The sample of prices had a mean of $187.34 and a standard deviation of $25.1. a. What critical value should be used for a 86% confidence interval for the mean, μ? Calculate a 86% confidence interval for the mean price of this model of tablet computer.
Homework Answers
Answer #1
from above : critical value should be used for a 86% confidence interval for the mean, μ =1.700
86% confidence interval for the mean price of this model of tablet computer=171.212 ; 203.468
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