3. Operators of gasoline-fueled vehicles complain about the price of gasoline in gas stations. The Canadian federal gas tax per litre is constant (0.10$ as of March 2022), but provincial taxes vary. The total tax per litre for gasoline from a random sample of 13 cities across Canada was coilected. Suppose that these measurements constitute a random sample of size 13. 0.408, 0.542, 0.470, 0.376, 0.399, 0.386, 0.481, 0.509, 0.543, 0.62, 0.415, 0.432,0.498 (a) Is there sufficient evidence to claim that the average per gallon gas tax is less than 0.50$ at a= 0.05? Report the p-value as well. (b) Construct a 95% confidence interval for the average per litre gas tax in Canada.

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