8. ssume that a sample is used to estimate a population
proportion p. Find the margin of error M.E. that
corresponds to a sample of size 110 with 53.6% successes at a
confidence level of 95%.
M.E. = _____ %
9. Giving a test to a group of students, the grades and gender are summarized below
A | B | C | Total | |
Male | 6 | 18 | 3 | 27 |
Female | 9 | 20 | 2 | 31 |
Total | 15 | 38 | 5 | 58 |
Let π represent the percentage of all female students who would
receive a grade of C on this test. Use a 85% confidence interval to
estimate p to three decimal places.
Enter your answer as a tri-linear inequality using decimals (not
percents).
________ < p < _________
8. ssume that a sample is used to estimate a population proportion p. Find the margin...
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 11 16 18 45 Female 13 20 10 43 Total 24 36 28 88 Let π represent the percentage of all male students who would receive a grade of A on this test. Use a 99.5% confidence interval to estimate p to three decimal places. Enter your answer as a tri-linear inequality using decimals (not percents).
Can anyone please help me with my Confidence Intervals for Proportions homework? Thank you so much! 1. Express the confidence interval 38.6%±9%38.6%±9% in interval form. Express the answer in decimal format (do not enter as percents). 2. We wish to estimate what percent of adult residents in a certain county are parents. Out of 100 adult residents sampled, 26 had kids. Based on this, construct a 95% confidence interval for the proportion, p, of adult residents who are parents in this...
Assume that a sample is used to estimate a population proportion p. Find the 80% confidence interval for a sample of size 227 with 112 successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. ____< p < ____
Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 248 with 120 successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. _________< p <__________
Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 266 with 82 successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. _______ < p < ______
Giving a test to a group of students, the grades and gender are summarized below Male Female Total A 16 14 30 B 6 5 11 C 18 15 33 Total 40 34 74 Let a represent the percentage of all male students who would receive a grade of B on this test. Use a 95% confidence interval to estimate p to three decimal places. Enter your answer as a tri-linear inequality using decimals (not percents).
Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 186 with 56% successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. Confidence interval = Express the same answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. < p < Express the same answer using the point estimate and margin of error. Give your...
Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 340 with 180 successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. <p> Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.
Assume that a sample is used to estimate a population proportion p. Find the 99.5% confidence interval for a sample of size 82 with 73 successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. < p < Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.
Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval for a sample of size 308 with 123 successes. Enter your answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. < p < Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.