In 2010, the online security firm Symantec estimated that 63% of computer users don’tchange their passwords very often. Suppose that you want to carry out a new survey to estimatethe proportion of...

In 2010, the online security firm Symantec estimated that 63% of computer users don’tchange their passwords very often. Suppose that you want to carry out a new survey to estimatethe proportion of students at your school who do not change their password. What is theminimum required sample size if you want to estimate this proportion with an error bound of atmost 0.05 ? Calculate the required sample size first using 0.63 as a preliminary estimate of andpthen using the conservative value of 0.5. How do the two sample sizes compare?