Leakage from underground fuel tanks has been a source of water pollution. In a random sample of 90 gasoline stations, 15 were found to have at least one leaking underground tanks. a. Find a 99% confidence interval for the proportion of gasoline stations with at least one leaking underground tank.

Q: X 57.9 35.3 55.7 57.5 55.1 55.6 51.7 60.3 151.6 -5.3 612.9 273.3 -132.1 249.5 29.2 -618.1 35.1…

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A: given data year 2003 n1 = 1508    x1 = 1085p^1 = x1n1 = 10851508 = 0.7195year 2008 n2 = 1508    x2 =…

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A: Ye

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