A toaster manufacturer receives large shipments of thermal switches from a suppl
ID: 2909342 • Letter: A
Question
A toaster manufacturer receives large shipments of thermal switches from a supplier. A sample from each shipment is selected and tested. The manufacturer will return a shipment if the proportion of defective switches is more than 5%. Otherwise the shipment will be kept. State the appropriate null and alternative hypotheses to be tested by the manufacturer.
Null hypothesis: The true proportion of defective switches is 0.05. Alternative hypothesis: The true proportion of defective switches is less than 0.05.
Null hypothesis: The true proportion of defective switches is not 0.05. Alternative hypothesis: The true proportion of defective switches is less than 0.05.
Null hypothesis: The true proportion of defective switches is 0.05. Alternative hypothesis: The true proportion of defective switches is greater than 0.05.
Null hypothesis: The true proportion of defective switches is not 0.05. Alternative hypothesis: The true proportion of defective switches is greater than 0.05.
a.Null hypothesis: The true proportion of defective switches is 0.05. Alternative hypothesis: The true proportion of defective switches is less than 0.05.
b.Null hypothesis: The true proportion of defective switches is not 0.05. Alternative hypothesis: The true proportion of defective switches is less than 0.05.
c.Null hypothesis: The true proportion of defective switches is 0.05. Alternative hypothesis: The true proportion of defective switches is greater than 0.05.
d.Null hypothesis: The true proportion of defective switches is not 0.05. Alternative hypothesis: The true proportion of defective switches is greater than 0.05.
Explanation / Answer
solution:- option C.
the appropriate null and alternative hypotheses to be tested by the manufacturer
option C. Null hypothesis: The true proportion of defective switches is 0.05. Alternative hypothesis: The true proportion of defective switches is greater than 0.05
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