out of 350 students, 125 of them have some type of musical talent. Give 90% confidence interval for the number of students who have some type of musical talent. (proportion)
out of 350 students, 125 of them have some type of musical talent. Give 90% confidence...
A student was asked to find a 90% confidence interval for the proportion of students who take notes using data from a random sample of size n = 81. Which of the following is a correct interpretation of the interval 0.12 < p < 0.29? With 90% confidence, a randomly selected student takes notes in a proportion of their classes that is between 0.12 and 0.29. With 90% confidence, the proportion of all students who take notes is between 0.12...
A student was asked to find a 90% confidence interval for the proportion of students who take notes using data from a random sample of size n = 86. Which of the following is a correct interpretation of the interval 0.13 < p < 0.23? Check all that are correct. __With 90% confidence, the proportion of all students who take notes is between 0.13 and 0.23. __There is a 90% chance that the proportion of the population is between 0.13...
What proportion of college students plan to major in Business? A 90% confidence interval is constructed based on data collected from 250 college students, and the interval is found to be from 0.18 to 0.27. Which of the following statements is a correct interpretation of this confidence interval? A We are confident that 90% of all students in the population plan to major in Business. B We are 90% confident the proportion of students in our sample who plan to...
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 researcher wants to estimate the proportion of students who have attended at least one football, basketball or baseball games during their first semester on campus. She surveys 500 students and 350 reported that they have attended at least one game. a) What is the standard error of the sample proportion of students who have attended at least one game during their first semester? b) What is the margin of error for the proportion of students who have attended at...
5) In a recent presidential election, 500 voters were surveyed and 350 of them said that they voted for the candidate who won. a. Construct a 96% confidence interval estimate of the percentage of voters who said they voted for the candidate who won. b. How many voters must they survey if they want 90% confidence that the sample proportion is in error by no more than 0.02?
You have been given the task of finding out what proportion of students that enroll in a local university actually complete their degree. You have access to first year enrolment records and you decide to randomly sample 110 of those records. You find that 89 of those sampled went on to complete their degree. a) Calculate the proportion of sampled students that complete their degree. Give your answer as a decimal to 3 decimal places. Sample proportion = You decide...
Confidence Interval for p: Suppose that 60 out of 100 sampled FIU voting-eligible students, support the candidate Joanna in the upcoming election. a) What is your “best-guess” estimate for the percentage of students in the population who will vote for Joanna? b) Compute a 95% Confidence interval for the proportion (p) of Joanna’s support in the upcoming election. What is the margin of error? c) How likely would the data be if p=0.55? Is p=0.55 in the 95% confidence interval?...
Take a guess as to what proportion of students at your school wear glasses in class. Write down an interval which you believe with 80% confidence to contain the actual value of this population parameter. Write down an interval which you believe with 99% confidence to contain the actual value of this population parameter. Which of these two intervals is wider? Record the number of students in your class and the number who are wearing glasses. What proportion of the...
Recently, 405 college students were surveyed, 185 said they own their car. Calculate a 90% confidence interval for the proportion of college students who say they own their cars. OA. (0.4568, 0.4975) O B. (0.4161, 0.4568) O C. (0.4568, 0.9000) O D. (04161, 0.4975)