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A drug manufacturer claimed that the mean potency of one of its antibiotics was 80%. A random sample of 100 capsules were tested and gave
A drug manufacturer claimed that the mean potency of one of its antibiotics was 80%. A random sample of 100 capsules were tested and gave a sample mean of 79.7%, with a SD of .8%.To test if the data present sufficient evidence to refute manufacturers claim, let alpha = .05
State the null hypothesis
a.=80
b. does not =80
c.<80
d.>80
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