10. A). McDonalds sells “quarter pounder” hamburgers. Define as the average weig

Question

10. A). McDonalds sells “quarter pounder” hamburgers. Define as the average weight of a quarter pounder measured in ounces. Consumer Reports believes that McDonalds is actually deceiving the public about the weight of their hamburgers. .B). McDonalds hears about the Consumer Reports study and wants to sue for libel. Their lawyers suggest to first test another set of H0 and Ha hypotheses. Their lawyers want to go ahead with the libel-lawsuit if they can reject their null-hypothesis at = 0.05. What set of hypotheses would the McDonalds lawyers likely want to investigate? C). Can you reject the lawyer’s null-hypothesis if a random sample of 100 hamburgers weighs 4.1 ounces and the population standard deviation equals 0.25 ouches? Use both a critical value and p-value approach.

Explanation / Answer

What set of hypotheses would the McDonalds lawyers likely want to investigate?

Ho : miu = miu      H1 : miu < miu

to find if the lawyer can reject we need the value of miu because I need the parameter that we are trying to test

Z = ( 4.1 - miu) / ( 0.25/ srqt 100 )

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