A doctor is interested in the proportion of patients which live at least 5 years after being diagnosed with stage 4 breast cancer. He randomly selects 196 patients diagnosed with stage 4 breast cancer and follows them for 5 years. Suppose the true 5 year survival rate for stage 4 breast cancer is 20%. 1. How are the collection of all sample proportions of samples of size 196 distributed? NO 2. What is the probability that fewer than 18% of the patients studied survived for at least 5 years? o List the z-scores needed to calculate the result. If there is more than one z-score, separate the values with a comma. o There is a survived for at least 5 years. 3. What is the probability that more than 21% of the patients studied survived for at least 5 years? chance that fewer than 18% of the patients studied o List the z-scores needed to calculate the result. If there is more than one z-score, separate the values with a comma. o There is a survived for at least 5 years. chance that more than 21% of the patients studied 4. What is the probability that between 18% and 21% of the patients studied survived for at least 5 years? o There is a studied survived for at least 5 years. o List the z-scores needed to calculate the result. If there is more than one z-score, separate the values with a comma. chance that between 18% and 21% of the patients