Question

You'd like to estimate the proportion of undergraduate students at a university who are​ full-time students....

You'd like to estimate the proportion of undergraduate students at a university who are​ full-time students. You poll a random sample of 325 ​students, of whom 297 are​ full-time. Unknown to​ you, the proportion of all undergraduate students who are​ full-time students is 0.926. Find the mean and standard deviation of the sampling distribution of the sample proportion for a sample of size 325. Find the z-score associated with your data.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The Dean of Students at a large university wanted to estimate the proportion of students who...
The Dean of Students at a large university wanted to estimate the proportion of students who are willing to report cheating by fellow students. So, her staff surveyed 172 students currently enrolled in the introduction to biology class. The students were asked, “Imagine that you witness two students cheating on a quiz. Would you tell the professor?” 19 of the surveyed students responded “yes.” Using these data, calculate a 95% confidence interval for the proportion of all students at the...
You want to estimate the proportion of full-time college students who earn a bachelor’s degree in...
You want to estimate the proportion of full-time college students who earn a bachelor’s degree in four years or less. How large a sample would be needed to ensure a 95% confidence level that the estimate is within 3 percentage points of the true population proportion?
A student in a university wants to estimate the percentage of undergraduate students who will apply...
A student in a university wants to estimate the percentage of undergraduate students who will apply for graduate school. What statistical method should be used?
You want to estimate the proportion of students at your college or university who are employed...
You want to estimate the proportion of students at your college or university who are employed for 10 or more hours per week while classes are in session. You plan to present your results by a 95% confidence interval. Using the guessed value p* = 0.32, find the sample size required if the interval is to have an approximate margin of error of m = 0.04.
1. A psychology professor at a university is interested in determining the proportion of undergraduate students...
1. A psychology professor at a university is interested in determining the proportion of undergraduate students at her university who self-identify as early-risers, night-owls, or neither. She decides to perform an observational study to investigate this question, so she randomly selects 500 undergraduate students from a university with 11088 undergraduate students enrolled to whom she poses her question. 274 respond that they would call themselves night-owls, 124 replied that they are early-risers, and 102 respond that they are neither. Is...
You plan to take a random sample of 1000 undergraduate students enrolled at the University of...
You plan to take a random sample of 1000 undergraduate students enrolled at the University of Washington to compare the proportion of female and male students who would like to see that the United States of America have a female President. Suppose that you use random numbers to select students, but you stop selecting females as soon as you have 100, and you stop selecting males once you have 100. Is the resulting sample a simple random sample? Explain your...
The university would like to conduct a study to estimate the true proportion of all university...
The university would like to conduct a study to estimate the true proportion of all university students who have student loans. According to the study, in a random sample of 215 university students, 86 have student loans. (a) Construct a 95% confidence interval for estimating the true proportion of all university students who have student loans (b) Provide an interpretation of the confidence interval in part (a). (c) Conduct an appropriate hypothesis test, at the 5% level of significance to...
A university would like to know how their undergraduate students feel about taking a statistics class...
A university would like to know how their undergraduate students feel about taking a statistics class for the first time. To gain information about this question, the university performs a research study. Which of the following would be the most appropriate sample for the university to collect? Question 4 options: Data from all male students in college in the USA. Data from students in college in the USA. Data from senior college students who have taken at least one statistics...
It is desired to estimate the proportion of female students at a certain university. At a...
It is desired to estimate the proportion of female students at a certain university. At a confidence level of 92%, determine the minimum sample size to ensure that the margin of error in your point estimate is no greater than 8%.
You would like to estimate a population proportion p. For example, this might be the proportion...
You would like to estimate a population proportion p. For example, this might be the proportion of all undergraduate students who own iPhones. You take a sample of size n and discover the sample proportion p̂, the proportion of students in the sample who own iPhones. Assume that p=0.36 and n=500. Which of the following is true? a. If you took many samples of size 500 from this population and calculated a sample proportion p̂ for each, the standard deviation...