The prices of heating oil and natural gas increase

Reference no: EM131128903

As the prices of heating oil and natural gas increase, consumers become more careful about heating their homes. Researchers want to know how warm home- owners keep their houses in January and how the results from Wisconsin and Tennessee compare. The researchers randomly call 23 Wisconsin households between 7 P.M. and 9 P.M. on January 15 and ask the respondent how warm the house is according to the thermostat. The researchers then call 19 households in Tennessee the same night and ask the same question. The results follow.

Wisconsin Tennessee

71	71	65	68	73	75	74	71
70	61	67	69	74	73	74	70
75	68	71	73	72	71	69	72
74	68	67	69	74	73	70	72
69	72	67	72	69	70	67
70	73	72

For a = .01, is the average temperature of a house in Tennessee significantly higher than that of a house in Wisconsin on the evening of January 15? Assume the population variances are equal and the house tempera- tures are normally distributed in each population.

Reference no: EM131128903

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