The market research manager of a catalog clothing supplier has begun an investigation of what factors determine the typical order size the supplier receives from customers. From the sales records stored on the company€™s computer, the manager obtained average order size data for 180 zip code areas. A part- time intern looked up the latest census information on per capita income, average years of formal education, and median price of an existing house in each of these zip code areas. (The intern couldn€™t find house price data for two zip codes and entered 0 for those areas.) The manager also was curious whether climate had any bearing on order size and included data on the average daily high temperature in winter and in summer.
The market research manager of a catalog clothing supplier has begun an investigation of what factors determine the typical order size the supplier receives from customers. From the sales records stored on the company€™s computer, the manager obtained average order size data for 180 zip code areas. A part- time intern looked up the latest census information on per capita income, average years of formal education, and median price of an existing house in each of these zip code areas. (The intern couldn€™t find house price data for two zip codes and entered 0 for those areas.) The manager also was curious whether climate had any bearing on order size and included data on the average daily high temperature in winter and in summer.
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MTB correlations of c1-ce 0 17 0:913 wineremp -0.134-0.098 0.014 Ο.066 ummTem.68 0.115 . 0.018 0 491 MTegress ci on 5 variables in 02-c6 The regression equation is 2 t-ratio 2.92 .004 0.19 0.853 -0.04 0971 2.B0 0.006 -1.77 0.079 0.04 0.963 0.4190 0:02161 wintTemp 2231 Regression5 5 7 1 3920.31 4337 94 Unusual Observations Obs. Incone Avgorder Fit Stdev, Fit Residual St Resid 17.1 23 570 36.555 11.9 24.990 34.950 13.4 36.750 29 136 14-3 45. 970 35 918 111 21.720 33570 10.4 43 500 33.469 16.1 20.350 27.915 13.2 44.970 35.369 13.5 44 650 34 361 13-723.050 34.929 R denotes an obs vith a large st. reaid 0.632 -12985 0.7939.960 2 0.302 -11.250 10.031 3.000 7.565 0.46乡 -11.879 9 x denotes an obs. whose x value gives it large innuence