Question: =+Suppose that the system is actually a prototype model, and the manufacturer does not wish to produce this model unless the data strongly indicate that

=+Suppose that the system is actually a prototype model, and the manufacturer does not wish to produce this model unless the data strongly indicate that when maximum outdoor temperature is 828F, the true average number of hours of chiller operation is less than 12. The appropriate hypothesis is then H0

: a 1 b(82) 5 12 versus Ha

: a 1 b(82) , 12 Use the statistic

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