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A random sample of ten homes in a particular area, each heated with natural gas, is selected, and the amount of gas (therms) used during January is determined for each

home. The resulting observations are 103, 156, 118, 89, 125, 147, 122, 109, 138, and 99. a. Use an unbiased estimator to compute a point estimate of µ, the average amount of gas used by all houses in the area. b. Use an unbiased estimator to compute a point estimate of TT, the proportion of all homes that use over 100 therms.

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