1.A researcher would like to determine if any particular age group has a greater risk of influenza-related death. A sample of 50 such cases is categorized according to the victim's age and reported in the table below. It should be noted that in the city from which the sample was selected, 30% of the population is in the "under 30" bracket, 40% in the "30 to 60" bracket, and 30% in the "over 60" bracket. Can the investigator conclude the risk differs with age ( = .05)? Be sure to state your null & alternative hypotheses, degrees of freedom and critical value, and the formal conclusion in the standard format.

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