About 79% of all female heart transplant patients will survive for at least 3 years. Ninety female heart transplant patients are randomly selected. What is the probability that the sample proportion surviving for at least 3 years will be less than 72%? Assume the sampling distribution of sample proportions is a normal distribution. The mean of the sample proportion is equal to the population proportion and the standard deviation is equal to % . The probability that the sample proportion surviving for at least 3 years will be less than 72% is . (Round to four decimal places as needed.) xample Get more help A Clear all