Texts: 10 randomly selected gas stations were selected. Their mean gas price was $2.85/gal and standard deviation of $0.25/gal. a. Find a 90% confidence interval for the standard deviation of all gas stations' gas prices. b. Margin of Error.
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- The sample size is 10. - The mean gas price is $2.85/gal. - The standard deviation is $0.25/gal. Show more…
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