DC Households. Use the following information for Exercises 59–61. The data set Households, located on the text Web site, contains information on the number and type of households in the 50 states and the District of Columbia. For each state, there are seven variables. Two of these variables are the percentage of households headed by women and the total number of households in the state . Minitab provides the following regression equation:

image

Note: Minitab shows its regression equations as instead of . Also, the notation 2.82E-07 refers to the scientific notation method of writing numbers. Often, software and calculators will present you with this type of notation, so you need to know how to read it. The number 2.82E-07 represents 2.82 times , or 0.000000282.

Question 4.159

households

61. The number of households per state ranges from about 170,000 to about 10 million.

  1. Estimate the percentage of households headed by women for a state with 7 million households, if appropriate.
  2. Estimate the percentage of households headed by women for a state with 100,000 households, if appropriate.

4.2.61

(a) 12.474% (b) is not in the range of the -values in the data set.