Question: 10.143 [EX10-143] Two methods were used to study the latent heat of ice fusion. Both method A (an electrical method) and method B (a method

10.143 [EX10-143] Two methods were used to study the latent heat of ice fusion. Both method A

(an electrical method) and method B (a method of mixtures) were conducted with the specimens cooled to 0.72°C. The data in the following table represent the change in total heat from 0.72°C to water at 0°C in calories per gram of mass.

Method A 79.98 80.04 80.02 80.04 80.03 80.03 80.04 79.97 80.05 80.03 80.02 80.00 80.02 Method B 80.02 79.94 79.98 79.97 79.97 80.03 79.95 79.97 Assuming normality, construct a 95% confidence interval for the difference between the means.

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