_ _ _ . . . II . I O_ I._ '0 _. _ QUIZ. Revrew Quiz for Final Exam Question 21 of 4D This queson: 1 point(5} passime Submit quiz You want to estimate the percentage of adults who believe that passwords should be replaced with biometric security {such as ngerprints] How many randomly selected adults must you survey? Assume that you want to be 99% condent that the sample percentage is within 4.3 percentage points of the true population percentage. Complete parts {a} through (c) below a. Assume that nothing is known about the percentage of adults who believe that passwords should be replaced with biometric security. The sample size needed is . (Round up to the nearest whole number as needed ) b. Assume that a prior survey suggests that about 53% of adults believe that biometric security should replace passwords. The sample size needed is . (Round up to the nearest whole number as needed ) c. Does the additional survey information from part [b] have much of an eect on the sample size that is required? The additional survey information from part [b] causes the required sample size to change by V 10%. Based on this, the additional survey information causes V in the sample size that is required