Twelve homemakers were asked to estimate the retail selling price of two models of refrigerators. Their estimates of selling price are shown in the following table. Use these data and test at the .05 level of significance to determine whether there is a difference between the two models in terms of homemakers' perceptions of selling price.

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Model Model 2 Homemaker Model 1 Model 2 2 4 6 $850 960 940 900 790 820 S1100 920 890 1050 1120 1000 $900 890 1100 700 810 920 $1090 1120 1200 890 900 900 10 12