A. Giving a test to a group of students, the grades and gender are summarized below
A | B | C | Total | |
Male | 18 | 3 | 2 | 23 |
Female | 5 | 10 | 13 | 28 |
Total | 23 | 13 | 15 | 51 |
Let pi represent the percentage of all male students who would
receive a grade of B on this test. Use a 90% confidence interval to
estimate ππ to three decimal places.
Enter your answer as a tri-linear inequality using decimals (not
percents).___<pi<___
B. Out of 400 people sampled, 104 had kids. Based on this,
construct a 95% confidence interval for the true population
proportion of people with kids.
Give your answers as decimals, to three places__<__
Ans:
A)
sample proportion=3/23=0.1304
90% confidence interval for p
=0.1304+/-1.645*sqrt(0.1304*(1-0.1304)/23)
=0.1304+/-0.1155
=(0.015, 0.246)
0.015<p<0.246
B)sample proportion=104/400=0.260
95% confidence interval for p
=0.260+/-1.96*sqrt(0.260*(1-0.260)/400)
=0.260+/-0.043
=(0.217, 0.303)
0.217<p<0.303
A. Giving a test to a group of students, the grades and gender are summarized below...
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).
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).
The result of an accounting test was collected, and the grades and gender are summarized below A B C Total Male 14 15 13 42 Female 9 12 4 25 Total 23 27 17 67 Let p represent the proportion 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). answer ____ < p...
Please show me how to do in Excel or Google sheets (ie =normsinv, or =confidence, etc) TY!! A.Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 11 4 5 20 Female 3 12 14 29 Total 14 16 19 49 Let ππ represent the percentage of all male students who would receive a grade of C on this test. Use a 90% confidence interval to estimate ππ to three...
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 12 2 16 30 Female 6 7 18 31 Total 18 9 34 61 If one student is chosen at random, Find the probability that the student was female OR got an "A". A test was given to a group of students. The grades and gender are summarized below A B C Total Male 2 3 18 23 Female 16...
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 13 2 7 22 Female 15 18 16 49 Total 28 20 23 7 If one student is chosen at random, Find the probability that the student was male OR got an "A".
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 15 18 19 52 Female 3 13 11 27 Total 18 31 30 79 If one student is chosen at random, Find the probability that the student was male AND got a "B". Question 8 Giving a test to a group of students, the grades and gender are summarized below A B Total 52 18 Male Female Total 15...
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 20 5 19 44 Female 2 18 8 28 Total 22 23 27 72 If one student is chosen at random, Find the probability that the student did NOT get an "A" Question 4 Giving a test to a group of students, the grades and gender are summarized below B А 20 C Total 19 44 5 Male Female...
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 15 6 14 35 Female 16 18 12 46 Total 31 24 26 81 Let p represent the population proportion of all male students who received a grade of A on this test. Use a 99% confidence interval to estimate p to four decimal places if possible. answer ____ < p < answer ____
Giving a test to a group of students, the grades and gender are summarized below Grades and Gender A B C Total Male 19 7 15 41 Female 4 12 2 18 Total 23 19 17 59 If one student is chosen at random, find the probability that the student did NOT get a "B"