The following data represent the property tax for a random sample of 50 single-family homes in the city of Houston. Suppose you want to estimate the typical property real estate tax for a single-family home in the city of Houston.

(a) What type of variable is “Tax” in the data set?
(b) What type of confidence interval should be constructed for this variable?
(c) Draw a boxplot of the sample data.
(d) Construct a 90% confidence interval for the typical property tax on a single-family home in Houston. Be sure the model requirements have been satisfied.

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5171.13 481.26 1299.73 2254.20 127.18 1942.26 1681.39 0 135.19 399.17 631.14 299.82 741.78 614.02 363.97 582.71 0 485.85 549.83 160.40 1418.64 168.31 1153.19 2188.74 677.40 1191.99 2419.75 206.48 503.01 1425.93 456.69 0 613.64 2183.94 1056.59 3481.21 495.72 2112.28 298.71 9183.38 1512.15 457.01 0 172.40 834.17 0 505.34 2244.02 521.50 796.47