Carol wanted to know about how much time students in her school spent surfing the Internet. So she asked 15 of her friends to complete a survey that she had prepared. Will the results of Carol’s survey represent the population of students in her school as a whole, and if so, which sampling method did Carol use? A. Yes, Carol used simple random sampling. B. Yes, Carol used systematic random sampling. C. Yes, Carol used stratified random sampling. D. No, Carol’s survey was not a random sample.
1 answer
Question:
Carol wanted to know about how much time students in her school spent surfing the Internet. So she asked 15 of her friends to complete a survey that she had prepared. Will the results of Carol’s survey represent the population of students in her school as a whole, and if so, which sampling method did Carol use?
A. Yes, Carol used simple random sampling.
B. Yes, Carol used systematic random sampling.
C. Yes, Carol used stratified random sampling.
D. No, Carol’s survey was not a random sample.
A. Yes, Carol used simple random sampling.
B. Yes, Carol used systematic random sampling.
C. Yes, Carol used stratified random sampling.
D. No, Carol’s survey was not a random sample.
Answers
Answer:DStep-by-step explanation:We can go through each form of sampling and see where this scenario fits.- Simple random sampling is simply taking a random percentage of the population. In this case, with the population being students in Carol's school, this would entail taking a random sample from her school. As her friends are not randomly selected, this does not fit- Systematic random sampling means that every nth item is selected. For example, if Carol took every 10th person at her school, this would fit. However, as her friends are not selected by Carol choosing every 5th or 10th person at school (or something like that), this does not fit.- Stratified random sampling means that different subgroups of the population are selected, and once those are selected, it is randomized to see who out of the subgroup is selected. For example, if Carol took all the men and women in her school and chose 50 random men and 50 random women, this would work. Although Carol's friends may define a subgroup of the population here, she is not asking anyone outside of that subgroup here, so this does not fit.As none of these fit, the only answer left is D
Similar Solved Questions
1 answer
Assume that the classes BlankISBN, NegativePrice, and NegativeNumberOrdered are exception classes that inherit from Exception. The following code is a constructor for the Book class. What must be true about any method that instantiates the Book class with this constructor?
Assume that the classes BlankISBN, NegativePrice, and NegativeNumberOrdered are exception classes that inherit from Exception. The following code is a constructor for the Book class. What must be true about any method that instantiates the Book class with this constructor?...
2 answers
Help what is 1+83x28 ive been stuck brainist for right answer
Help
what is 1+83x28 ive been stuck
brainist for right answer...
1 answer
Choose one of the following two prompts. 1. I am a citizen of the world is a key line in the story When Greek Meets Greek. Compare and contrast how this line relates to the events of When Greek Meets Greek and another selection in this unit. 2. The poems in this unit share a theme of love love of self, love of family, love of country, and love of a significant other. After deciding what kind of love is being addressed in each poem compare and contrast how two of the poems treat the subject of lo
Choose one of the following two prompts. 1. I am a citizen of the world is a key line in the story When Greek Meets Greek. Compare and contrast how this line relates to the events of When Greek Meets Greek and another selection in this unit. 2. The poems in this unit share a theme of love love of se...
1 answer
After visiting several automobile dealerships, Richard selects the car he wants. He likes its $20,000 price, but financing through the dealer is no bargain. He has $4,000 cash for a down payment, so he needs a loan of $16,000. In shopping at several banks for an installment loan, he learns that interest on most automobile loans is quoted at add-on rates. That is, during the life of the loan, interest is paid on the full amount borrowed even though a portion of the principal has been paid back. R
After visiting several automobile dealerships, Richard selects the car he wants. He likes its $20,000 price, but financing through the dealer is no bargain. He has $4,000 cash for a down payment, so he needs a loan of $16,000. In shopping at several banks for an installment loan, he learns that inte...
1 answer
In one week, the Green Recycling Center received 784 aluminum cans. They received the same number of cans each day. How many cans did the recycling center receive each day?
in one week, the Green Recycling Center received 784 aluminum cans. They received the same number of cans each day. How many cans did the recycling center receive each day?...
1 answer
Im so hopeless no one can answer my homework question and its due tommorow :( How much pressure is exerted when air is being compressed?
Im so hopeless no one can answer my homework question and its due tommorow :(
How much pressure is exerted when air is being compressed?...
1 answer
Yuma and Arizona and Las Vegas and Nevada are two driest cities in the United States. Yuma gets the average of 2 2/3 inch of rain each year. Las Vegas gets 4 1/5 inch of rain. How many inches does it rain in the two cities combined
Yuma and Arizona and Las Vegas and Nevada are two driest cities in the United States. Yuma gets the average of 2 2/3 inch of rain each year. Las Vegas gets 4 1/5 inch of rain. How many inches does it rain in the two cities combined...
1 answer
Which of these is not a useful component to include when creating a time schedule? Plan to relax. Be prepared. Be spontaneous. Plan to study.
Which of these is not a useful component to include when creating a time schedule?
Plan to relax.
Be prepared.
Be spontaneous.
Plan to study....
1 answer
What effect did the american revolution have on the role of women in society?
What effect did the american revolution have on the role of women in society?...
2 answers
He is saving for a new baseball glove. He saves 10$ the first week, and 6$ each week for the next 6 weeks. How much money did he save
He is saving for a new baseball glove. He saves 10$ the first week, and 6$ each week for the next 6 weeks. How much money did he save...
2 answers
The sum of two complementary angles is 90°. For one pair of complementary angles, the measure of the first angle is 15 less than twice the measure of the second angle. Write a system of equations that can be used to determine the measure of the first angle, a, and the measure of the second angle, b. •a+b=90 a-2b=15 •a+b=90 2b-15=a •a+b=90 2b+15=a •a+b=90 2a-15=b
The sum of two complementary angles is 90°. For one pair of complementary angles, the measure of the first angle is 15 less than twice the measure of the second angle. Write a system of equations that can be used to determine the measure of the first angle, a, and the measure of the second angle, b...
1 answer
Determine the amplitude, period, and phase shift of the function f(x)=cos (8(x-1))+2
Determine the amplitude, period, and phase shift of the function f(x)=cos (8(x-1))+2...
1 answer
250,000 people visited a theme park in one year 15% of the people visited in april and 40% of the people visited in august how many people visited the park in the rest of the year
250,000 people visited a theme park in one year 15% of the people visited in april and 40% of the people visited in august how many people visited the park in the rest of the year...
1 answer
Anyone know how to do exponential funtion word problems
Anyone know how to do exponential funtion word problems...
2 answers
Explain why the precise length target DNA sequence doesn't get amplified until the third cycle. You may need to use additional paper and a drawing to explain your answer.
Explain why the precise length target DNA sequence doesn't get amplified until the third cycle. You may need to use additional paper and a drawing to explain your answer....