9) A supplier of 3.5" disks claims that no more than 1% of the disks are defective. In a random sample of 600 disks, it is found that 3% are defective, but the supplier claims that this is only a sample fluctuation. Test whether the supplier's claim that no more than 1% are defective is supported or not supported. Ho:- Ha: n = %3D p-value = Compare the p-value and a: Decision: Conclusion:
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A researcher believes that children who attend elementary school in a rural setting have lower obesity rates then
children who attend elementary school in an urban setting. The researcher collects a random sample from each
population and records the proportion of children in each sample who are clinically obese. The data is
summarized in the table below. Assume that all conditions for proceeding with a two-sample test have been
met.
Using a 5% significance level, perform the appropriate hypothesis test.
H0:________________________ Ha:_______________________
p-value = ___________ Compare the p-value and Į:________________
Decision:_________________________
Conclusion:___________________________________________________________.
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