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Mathematics, 09.11.2019 06:31 zalliagessnerp5fuj9
Aconsumers’ advocate group would like to evaluate the average energy efficiency (eer) of window mounted, large-capacity air conditioning units. a random sample of 36 units is selected and tested for a fixed period of time. their eer records are as follows: 8.9 9.1 9.2 9.1 8.4 9.5 9.0 9.6 9.3 9.3 8.9 9.7 8.7 9.4 8.5 8.9 8.4 9.5 9.39.3 8.8 9.4 8.9 9.3 9.0 9.2 9.1 9.8 9.6 9.3 9.2 9.1 9.6 9.8 9.5 10.0using the 0.05 level of significance, is there evi- dence that the average eer is different from 9.0?
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