A random sample of state gasoline taxes (in cents) is shown here for 12 states. Use the

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A random sample of state gasoline taxes (in cents) is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does your interval contain the national average of 44.7 cents?

38.       4 40.    9 67     32.5     51.5     43.4

38        43.4     50.7     35.4     39.3     41.4

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