Question

9- The dean of the school wants to know the proportion of students in the school...

9- The dean of the school wants to know the proportion of students in the school who prefer online classes for the next semester. How do you conduct a research to estimate this proportion by sampling (suppose that you can take only one sample of size n which is smaller than the population size N, and also suppose that a %90 percent confidence interval is fine). - You should explain all steps you take including how you make decision about sample size, what question you ask from the sample, the estimator you choose and the reason for that, how you calculate this estimator, and how you build a confidence interval for the parameter based on this estimator.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
9- The dean of the school wants to know the proportion of students in the school...
9- The dean of the school wants to know the proportion of students in the school who prefer online classes for the next semester. How do you conduct a research to estimate this proportion by sampling (suppose that you can take only one sample of size n which is smaller than the population size N, and also suppose that a %90 percent confidence interval is fine). - You should explain all steps you take including how you make decision about...
A survey is planned to determine what proportion of high-school students in a metropolitan school system...
A survey is planned to determine what proportion of high-school students in a metropolitan school system have regularly smoked marijuana. The school administrators would like to estimate the proportion with 95 % confidence and a margin of error of no more than 4%. It was reported that 31.03% of high school students in a similar metropolitan area regularly smoke marijuana. If this estimate is used, what sample size would be required? n = If the administrators choose not to use...
A researcher wants to construct a 95% confidence interval for the proportion of elementary school students...
A researcher wants to construct a 95% confidence interval for the proportion of elementary school students in Seward County who receive free or reduced-price school lunches. What sample size is needed so that the confidence interval will have a margin of error of 0.03?
A dean of a business school wanted to know whether the graduates of her school used...
A dean of a business school wanted to know whether the graduates of her school used the statistic skills that they learn in university during their first year of employment after graduation. As of today there are 34,050 graduates in total from the business school. The Dean is committed to allocate more funding to the development of the school’s statistics course if at least 17% of its graduates use statistics skills during their first year of employment. She surveyed 500...
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...
The principal of a large local high school wants to know what proportion of her students...
The principal of a large local high school wants to know what proportion of her students are planning to attend college. Suppose that 72% of all students in her high school are planning to attend college. What is the probability that an SRS of size 200 will give a sample proportion between 66% and 78%? 0.939 0.061 0.099 0.815
Suppose the university wants to determine what proportion of students prefer online tests to in-class tests....
Suppose the university wants to determine what proportion of students prefer online tests to in-class tests. The university invites the students to participate in a survey and out of 130 students that responded 39 prefer online testing. (a) Find the 90% confidence interval for the true proportion of students that prefer online testing. (b) What is the minimum number of students that should answer the survey in order to know with at least 98% certainty that the true proportion of...
Suppose that a dean of a private school wants to estimate the mean IQ of her...
Suppose that a dean of a private school wants to estimate the mean IQ of her student body without having to go through the time and expense of administering the tests to all 1,000 students. Instead, she selects 25 students at random and gives them the test. She finds that the mean for her sample is 105. Calculate the 95% confidence interval. Show steps please
1. A university Dean is interested in determining the proportion of students who receive some sort...
1. 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. By hand, and using formulas for the “Margin of Error” (i.e. not calculator confidence interval), find a 98% confidence interval to estimate the true proportion of students on financial aid. (Use 3 decimal places for proportions.) 2....
4a The Dean of USD’s School of Business wants to estimate of the percentage of undergraduate...
4a The Dean of USD’s School of Business wants to estimate of the percentage of undergraduate students who do an internship. He wants to be 92% confident that the margin of error is less than 3 percent. Previous studies have shown this proportion to be around 66%..How large of a sample must he take? 496 764 564 655 None of the above
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT