A university wants to examine the effect of financial aid on graduation rate. Among the students, 90% of them graduate with a bachelor degree. For those who graduate, 75% of them receive financial aid. For those who do not graduate, 50% of them receive financial aid. For those who receive financial aid, what is the probability that they graduate?
P(receive financial aid) = 0.75 * 0.9 + 0.5 * (1 - 0.9) = 0.725
P(graduate | receive financial aid) = P(receive financial aid | graduate) * P(graduate)/P(receive financial aid)
= (0.75 * 0.9)/0.725 = 0.93103
A university wants to examine the effect of financial aid on graduation rate. Among the students,...
A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial aid. If the dean wanted to estimate the proportion of all students receiving financial aid to within 3% with 98% reliability, how many students would need to be sampled?
A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 225 students and finds that 135 of them are receiving financial aid. Use a 90% confidence interval to estimate the true proportion of students who receive financial aid.
A university dean randomly selected 200 students and found that 102 of them were receiving financial aid. a) Calculate the 80% confidence interval for the true rate of students who receive financial aid. Interpret the result. b) Calculate the 90% confidence interval for the true rate of students who do not receive financial aids. Interpret the result. c) How large a sample size needed with 95% confidence to estimate the true rate of students who receive financial aid within 0.05....
A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial aid. If the dean wanted to estimate the proportion of all students receiving financial aid to within 5% with 99% confidence level, how many students would need to be sampled?
wants to know how te college students at her university feel about federal financial aid. She obtains college students at her university, selects 500 of them at random, and emails a q a list of 1196 u them. 107 completely overhauled. Classify the following groups as the population or the sample for this particular study. If a group does are returned. Of these, 71% stated that they believe that the federal student loan program needs to be not belong in...
Solve the problem. A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial aid. If the dean wanted to estimate the proportion of all students receiving financial aid to within 1% with 99% reliability, how many students would need to be sampled? 3880 161 16,040 6229
A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial aid. If the dean wanted to estimate the proportion of all students receiving financial aid to within 5% with 99% reliability, how many students would need to be sampled? a.) 156 b.) 642 c.) 250 d.) 33
Eighty-eight percent of students receive financial aid. Suppose 150 students are selected at random. Use the normal distribution with a continuity correction to approximate the probability that 130 of them receive financial aid.
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Question 3 (8 points) A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 108 of them are receiving financial aid. Use a 90% confidence interval to estimate the true proportion of students who receive financial aid.
A dean at a large state university (student population exceeds 40,000) is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial aid. When the dean repeated this study the next year, she used a sample of 256 students and obtained an interval estimate of 41.95% to 58.05%. What is the confidence level and...