A study is conducted to determine the average price of a gallon of gas in Arizona....

A study is conducted to determine the average price of a gallon of gas in Arizona. A sample of 10 stations had a mean of $1.85 and a standard deviation of 0.06. Find a 95% confidence interval for the average price of a gallon of gas in Arizona. (Assume appropriate conditions are satisfied and be sure to round precisely.)

Group of answer choices

(1.81, 1.89)

(175, 1.95)

(1.82, 1.88)

(1.79, 1.91)

Solutions

Expert Solution

orchestra answered 1 year ago

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