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The proportion of Harris County residents who own a pet(s) is 80%. A researcher believes a...

The proportion of Harris County residents who own a pet(s) is 80%. A researcher believes a larger proportion of Harris County residents own a pet(s). He surveys 1,000 residents and 850 responded that they own a pet(s). Test his hypothesis at the alpha level of .05. Steps below
a) Write the null and research hypotheses
b) Is it a one-tail or two-tail test?
c) Determine Z-critical, indicate on the normal curve.
d) Identify the acceptance and rejection regions in part c above
e) Calculate the test statistics
f) Decide whether to accept or reject the null hypothesis
g) Conclusion

Math   Statistics-And-Probability   
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