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During 2011, young millennials consumed an average of 193 restaurant meals per person. Based on a sample in 2012, the sample mean number of...
3. During 2011, young millennials consumed an average of 193 restaurant meals per person. Based on a sample in 2012, the sample mean number of restaurant meals consumed by young millennials was 182. Assume that the sample size was 150. The population standard deviation can be assumed to be 55.
a. Conduct a hypothesis test to determine whether there has been a change in the frequency of consuming restaurant meals by young millennials from 2011 to 2012. Use a .01 level of significance. Write out everything step by step, as we have practiced.
b. Suppose, instead, that you had decided to conduct a hypothesis test to determine whether there had been a decrease in the frequency of consuming restaurant meals by young millennials from 2011 to 2012. Will your conclusion change in this setting? Explain your answer. (Use a .01 level of significance, as before.)
