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 0.02 margin of error and use a confidence level of 95​%. a. Assume that nothing is known about the percentage to be estimated. n= _____ ​(Round up to the nearest​ integer.)   b. Assume prior studies have shown that about 60​% of​ full-time students earn​ bachelor's degrees in four years or less. n= ____ ​(Round up to the nearest​ integer.)

Tina catches a 14-pound bass.  She does not know the population mean or standard deviation.  So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds.  Find the t and calculate a 95% (α = .05) confidence interval.

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 0.01 margin of error and use a confidence level of 90​%. Complete parts​ (a) through​ (c) below. a. assume that nothing is known about the percentage to be estimated. n=___?  (round up to the nearest interger) b.  assume prior students earn bachelor's degrees in four years or less. n=____?  (round up to the nearest interger) c.  Does the added knowledge in part b have much of an effect on the sample size?     a. No, using the additional survey information from part b only slightly reduces the sample size.     b.  Yes, using the additional survey information from part b only slightly increases the sample size.      c.  Yes, using the additonal survey information from part b dramatically reduces the sample size..      d.  No, using the…

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 0.04 margin of error and use a confidence level of 95%. Complete parts (a) through (c) below. a. Assume that nothing is known about the percentage to be estimated. n= (Round up to the nearest integer.) b. Assume prior studies have shown that about 55% of full-time students earn bachelor's degrees in four years or less. n= (Round up to the nearest integer.) c. Does the added knowledge in part (b) have much of an effect on the sample size? O A. No, using the additional survey information from part (b) does not change the sample size. O B. Yes, using the additional survey information from part (b) dramatically reduces the sample size. Oc. Yes, using the additional survey information from part (b) only slightly increases the sample size. O…