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This question: 2 point(s) possible RD JNIT In a study of government financial aid for college students, it becomes necessary to estimate the percentage of full-time college students who earn a bachelor's degree in four years or less. Find the sample size needed to estimate that percentage. Use a 0.05 margin of error and use a confidence level of 95%. Complete parts (a) through (c) below. rses a. Assume that nothing is known about the percentage to be estimated, n= ay Home (Round up to the nearest integer.) Incemer b. Assume prior studies have shown that about 40% of full-time students earn bachelor's degrees in four years or less n= ments (Round up to the nearest integer.) Plan c. Does the added knowledge in part (b) have much of an effect on the sample size? ebook O A. No, using the additional survey information from part (b) only slightly reduces the sample size. O B. Yes, using the additional survey information from part (b) only slightly increases the sample size. O C. Yes, using the additional survey information from part (b) dramatically reduces the sample size O D. No, using the additional survey information from part (b) does not change the sample size. pter Conte essible Res ills for Succ