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We conduct a study with n = 4 participants who have just purchased cell phones, in order to model the time until phone replacement. The
We conduct a study with n = 4 participants who have just purchased cell phones, in order to model the time until phone replacement. The first participant replaces her phone after 1.2 years. The second participant still has not replaced her phone at the end of the two-year study period. The third participant changes her phone number and is lost to follow up (but has not yet replaced her phone) 1.5 years into the study. The fourth participant replaces her phone after 0.2 years. For each of the four participants, answer the following questions: (a) Is the participant's cell phone replacement time censored? (b) Is the value of Ci known, and if so, what is it? (c) Is the value of Ti known, and if so, what is it? (d) Is the value of Yi known, and if so, what is it? (e) Is the value of i known, and if so, what is it
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