Question

A researcher wants to take a simple random sample of about 5% of the student body...

A researcher wants to take a simple random sample of about 5% of the student body at each of two schools. The university has approximately 20,000 students, and the college has about 5000 students. Identify each of the following as true or false and justify your answer.

(a) The sampling variability is the same for both schools.
True. The sample sizes are different.
True. The sample sizes are the same.
False. The sample sizes are different.
False. The sample sizes are the same.

(b) The sampling variability for the university is higher than that for the college.
True. The university has more students.
True. The university has less students.
False. The university has more students.
False. The university has less students.

(c) The sampling variability for the university is lower than that for the college.
True. The university has more students.
True. The university has less students.
False. The university has more students.
False. The university has less students.

(d) No conclusion about the sampling variability can be stated without knowing the results of the study.
true
False. Because we know the approximate sample sizes, we can make some conclusions about the sampling variability ahead of time.
False. We can always make a conclusion about the sampling variability.
none of the above

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
A random sample of 16 students selected from the student body of a large university had...
A random sample of 16 students selected from the student body of a large university had an average age of 25 years and a standard deviation of 2 years. We want to determine if the average age of all the students at the university is significantly more than 24. Assume the distribution of the population of ages is normal.  At 95% confidence, it can be concluded that the mean age is a. significantly different from 24 b. not significantly different from...
A random sample of 16 students selected from the student body of a large university had...
A random sample of 16 students selected from the student body of a large university had an average age of 25 years and a standard deviation of 2 years. We want to determine if the average age of all the students at the university is less than equal to or greater than 24. Assume the distribution of the population of ages is normal. Using α = .05, it can be concluded that the population mean age is not different than...
The student organization wants to conduct a survey across students' body about the proportion of the...
The student organization wants to conduct a survey across students' body about the proportion of the students who want to sue University for returning room and board money. The university has 2000 students. Interviewing all of the students is too time-consuming so the student organization decided to do sampling. What is the size of a sample (students to be interviewed) with bound of estimation of magnitude 0.05? No prior information is available.
a simple random sample of 5000 students were selected and asked how likely to for them...
a simple random sample of 5000 students were selected and asked how likely to for them to maintain a 6 feet distamce in the classrooms if they return to campus. among the sample 5000 , 76% of the students responded that they are somewhat or very likely to keep the physical distance in classrooms (SHOW All Work) 1. University is intrested in releasing an interval estimate for the true proportion of students who would be (somewhat or very likely to...
A random sample of 16 students selected from the student body of a large university had...
A random sample of 16 students selected from the student body of a large university had an average age of 25 years and a standard deviation of 2 years. We want to use hypothesis testing to determine if the average age of all the students at the university is significantly more than 24. Assume the distribution of the population of ages is normal. The value of the test statistic is The p-value is between a. .01 and .02 b. .02...
1. A researcher wants to create a random sample of students at Smart U. A friend...
1. A researcher wants to create a random sample of students at Smart U. A friend suggests that the researcher walk across campus and approach every third person she encounters. Is this a random sample? If not, what type of sample is it? Can you develop a procedure to create a random sample? 2. Which correlation is stronger: 0.55 or -0.87? 3. A researcher wishes to learn whether college students use more slang when speaking with a person their own...
Researchers A and B each have a random sample from the same population, which has mean...
Researchers A and B each have a random sample from the same population, which has mean and a finite variance. Here are their data: Researcher A        Researcher B Sample sizes                      nA   nB Sample means         Consider the following claims: Claim 1. If nA > nB, the estimator  puts too much weight on researcher A’s observations to be efficient. Claim 2. If nA ≠≠ nB, the estimator  is biased. Claim 3. If nA > nB, we can make the estimator  more efficient by...
A random sample of 16 students selected from the student body of a large university had...
A random sample of 16 students selected from the student body of a large university had an average age of 25 years and a standard deviation of 2 years. We want to determine if the average age of all the students at the university is significantly more than 24. Assume the distribution of the population of ages is normal. Use α = 0.01. 10. The test statistic is a. 1.96 b. 2.00 c. 1.645 d. 0.05 11. The critical value...
Simple random sampling uses a sample of size n from a population of size N to...
Simple random sampling uses a sample of size n from a population of size N to obtain data that can be used to make inferences about the characteristics of a population. Suppose that, from a population of 55 bank accounts, we want to take a random sample of eight accounts in order to learn about the population. How many different random samples of eight accounts are possible?
Based on a simple random sample of 1440 college students, a 97% confidence interval for the...
Based on a simple random sample of 1440 college students, a 97% confidence interval for the percentage of students who receive financial aid is reported as 82.99% ±± 2.5%. Which of the following is/are correct interpretation(s) of this confidence interval?There may be more than one correct answer; you must check all correct answers in order to get credit for this problem. A. If we select an individual from the population, there is a 97% probability that this individual is one...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT