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( 2 0 % ) Polychlorinated biphenyls ( PCBs ) have been found to be dangerously high in some game birds found along the marshlands
Polychlorinated biphenyls PCBs have been found to be dangerously high in some game
birds found along the marshlands of the southeastern coast of the United States. The Federal Drug
Administration FDA considers a concentration of PCBs higher than parts per million ppm
in these game birds to be dangerous for human consumption. A sample of game birds produced
an average of with a standard deviation of
a Is there sufficient evidence to indicate that the mean ppm of PCBs in the population of game
birds exceeds the FDA's recommended limit of ppm Use
b Calculate the type II error if the true mean ppm of PCBs is
c Calculate the decision power when the true mean ppm of PCBs is
d For what values of the true mean ppm of PCBs does the test in a have power greater than or
equal to
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