Question: 2. The dataset called DataSetInstrumentsDemographics_Correct contains data from the HIV/AIDS Targeted Quality of Life (HAT-QoL) instrument (Bakken et al., 2000) for the variable HATTOT, which

2. The dataset called "DataSetInstrumentsDemographics_Correct" contains data from the HIV/AIDS Targeted Quality of Life (HAT-QoL) instrument (Bakken et al., 2000) for the variable HATTOT, which is a measure of the quality of life of HIV positive patients with regards to living with AIDS. Based on this data, the mean HATTOT score for the sample was 97.8. The possible range of raw scores for the HATTOT variable is 29 to 145, with higher scores indicating better mastery of the illness and fewer symptoms. It was also found that the mean number of years patients have lived with AIDS in this sample is 17.7 years. a) Using this information, calculate the quality of life index for this sample. b) Calculate the mean quality-adjusted life years (QALYs) for the sample

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