According to the National Postsecondary Student Aid Study conducted by the U. S. Department of Education in 2008, 62% of graduates from public universities had student loans. We randomly select 50 students at a time. Flag this Question Question 15 pts What is the mean of the distribution of sampling proportions? Do not round, and enter your answer as a proportion (decimal number) not a percentage. Flag this Question Question 25 pts What is the standard error for the distribution of sampling proportions? If necessary, round to three decimal places.