We are open Saturday and Sunday!

Call Now to Set Up Tutoring:

(888) 888-0446

Create an account to track your scores
and create your own practice tests:

Create an Account Create a Practice Test

All HiSET: Math Resources

125 Practice Tests Question of the Day Flashcards Learn by Concept

Want to review HiSET: Math but don’t feel like sitting for a whole test at the moment? Varsity Tutors has you covered with thousands of different HiSET: Math flashcards! Our HiSET: Math flashcards allow you to practice with as few or as many questions as you like. Get some studying in now with our numerous HiSET: Math flashcards.

Flashcards: Use statistics and data to gain information about a population

Researchers want to find the average age of indigenous people who inhabit a remote island. It is believed that the people of this island live abnormally long lives, so the average age of people is higher than in the rest of the world. The previously reported average age of people on the island is 47 years.

Researchers wanted to test the validity of this claim. They took a random sample of 50 people on the island and found that the average age of the sample was 28.5 years.

Which of the following statements can best be made, given the findings?

50 people on the island have ages between 28 and 29 years.

The average age of people on the island is the same as the rest of the world.

The average age of indigenous people on the island is between 28 and 29 years.

The average age of the indigenous people on the island is 28.5 years

It is very likely that the average age of people on the island is actually much lower than previously reported.

Report an Error Copyright Notice

Flashcards: Use statistics and data to gain information about a population

Which of the following statements can best be made, given the findings?

Your answer:

50 people on the island have ages between 28 and 29 years.

Your answer:

The average age of people on the island is the same as the rest of the world.

Your answer:

The average age of indigenous people on the island is between 28 and 29 years.

Your answer:

The average age of the indigenous people on the island is 28.5 years

Correct answer:

It is very likely that the average age of people on the island is actually much lower than previously reported.

Explanation:

From the question, we know the average age from a random sample of 50 people was 28.5 years; however, because this data is only from a random sampling of people, it is difficult to say anything certain about the entire population.

While it seems that the previously reported age is wrong, and that the average age of people on the island is likely around 29, it is impossible to say for certain what the average age actually is without gathering data for every single person on the island.

With findings from a random sample, you can draw conclusions about what is likely.

It is likely that the actual average age is lower than the previously reported average age; however, without data for every single person in the population, statements that are certain, such as, "The average age of the indigenous people on the island is 28.5 years," cannot be made.

Note that the statement, "The average age of indigenous people on the island is between 28 and 29 years," is a certain statement, even though it does not give an exact value for the average. Even though researchers found an average age of 28.5 years, it is still very possible that the actual average age is outside the range of 28 to 29.

Therefore, the statement, "It is very likely that the average age of people on the island is actually much lower than previously reported," is the answer because it does not try to make any certain claims and the conclusion is supported by the findings.

Flashcards: Use statistics and data to gain information about a population

An ad campaign was run at 1200 fast food franchise locations. Two weeks later, a random sample of revenue of 80 locations was taken to measure the effectiveness of the ad campaign. Of the 80 locations, 60 locations reported increased sales.

Which of the following statements can be made with the greatest certainty?

It is very likely that at least half of all franchise locations did not experience increased sales in the last two weeks.

It is very likely that less than half of all franchise locations experienced increased sales in the last two weeks.

It is very likely that more than half of all franchise locations experienced increased sales in the last two weeks.

At least 75% of all franchise locations did not experience increased sales in the last two weeks.

Exactly 75% of franchise locations experienced increased sales in the last two weeks.

Report an Error Copyright Notice

Flashcards: Use statistics and data to gain information about a population

Which of the following statements can be made with the greatest certainty?

Your answer:

It is very likely that at least half of all franchise locations did not experience increased sales in the last two weeks.

Your answer:

It is very likely that less than half of all franchise locations experienced increased sales in the last two weeks.

Your answer:

At least 75% of all franchise locations did not experience increased sales in the last two weeks.

Your answer:

Exactly 75% of franchise locations experienced increased sales in the last two weeks.

Correct answer:

It is very likely that more than half of all franchise locations experienced increased sales in the last two weeks.

Explanation:

From the question, we know that 60 out of a random sample of 80 locations experienced increased sales in the last two weeks; however, because this data is only from a random sampling of locations, it is difficult to say anything absolute about the population (all of the locations).

While 75% of the random sample did experience increased sales, we cannot know for certain what portion of the entire population experienced increased sales. What we can conclude from this data is that it is likely that the percentage of restaurants that experienced increased sales is roughly around 75%.

Therefore, the statement that can be made with the most certainty is that "It is very likely that more than half of all franchise locations experienced increased sales in the last two weeks."

DMCA Complaint

If you believe that content available by means of the Website (as defined in our Terms of Service) infringes one or more of your copyrights, please notify us by providing a written notice (“Infringement Notice”) containing the information described below to the designated agent listed below. If Varsity Tutors takes action in response to an Infringement Notice, it will make a good faith attempt to contact the party that made such content available by means of the most recent email address, if any, provided by such party to Varsity Tutors.

Your Infringement Notice may be forwarded to the party that made the content available or to third parties such as ChillingEffects.org.

Please be advised that you will be liable for damages (including costs and attorneys’ fees) if you materially misrepresent that a product or activity is infringing your copyrights. Thus, if you are not sure content located on or linked-to by the Website infringes your copyright, you should consider first contacting an attorney.

Please follow these steps to file a notice:

You must include the following:

A physical or electronic signature of the copyright owner or a person authorized to act on their behalf; An identification of the copyright claimed to have been infringed; A description of the nature and exact location of the content that you claim to infringe your copyright, in \ sufficient detail to permit Varsity Tutors to find and positively identify that content; for example we require a link to the specific question (not just the name of the question) that contains the content and a description of which specific portion of the question – an image, a link, the text, etc – your complaint refers to; Your name, address, telephone number and email address; and A statement by you: (a) that you believe in good faith that the use of the content that you claim to infringe your copyright is not authorized by law, or by the copyright owner or such owner’s agent; (b) that all of the information contained in your Infringement Notice is accurate, and (c) under penalty of perjury, that you are either the copyright owner or a person authorized to act on their behalf.

Send your complaint to our designated agent at:

Charles Cohn Varsity Tutors LLC
101 S. Hanley Rd, Suite 300
St. Louis, MO 63105

Or fill out the form below:

Do not fill in this field

Contact Information

* Full legal name

Company name

* Phone number

* Email address

Address

* Address1

Address2

* City

* State

* Zipcode

* Country

Complaint Details

* URL of copyrighted work (where your original material is located)

* Please describe the copyrighted work so that it may be easily identified

I am the owner, or an agent authorized to act on behalf of the owner of an exclusive right that is allegedly infringed.

I have a good faith belief that the use of the material in the manner complained of is not authorized by the copyright owner, its agent, or the law.

This notification is accurate.

I acknowledge that there may be adverse legal consequences for making false or bad faith allegations of copyright infringement by using this process.

* Signature (your digital signature is legally binding)

View Tutors

Denise
Certified Tutor

University of Washington, Bachelor's, Double Major: English (Creative Writing) and Communications (Journalism).

View Tutors

James
Certified Tutor

USAF Academy, Bachelors, Astrodynamics and Engineering Sciences. Massachusetts Institute of Technology, Master of Science, Ap...

View Tutors

Brad
Certified Tutor

University of Washington, Bachelor in Arts, Music.

Popular Subjects

Computer Science Tutors in Los Angeles, English Tutors in Denver, GRE Tutors in Washington DC, French Tutors in New York City, ISEE Tutors in San Francisco-Bay Area, Math Tutors in Los Angeles, French Tutors in Denver, Statistics Tutors in New York City, LSAT Tutors in San Francisco-Bay Area, French Tutors in Houston

Popular Courses & Classes

SSAT Courses & Classes in Dallas Fort Worth, LSAT Courses & Classes in Los Angeles, SAT Courses & Classes in Chicago, GRE Courses & Classes in Houston, MCAT Courses & Classes in Houston, Spanish Courses & Classes in Dallas Fort Worth, ACT Courses & Classes in Phoenix, Spanish Courses & Classes in Miami, Spanish Courses & Classes in San Francisco-Bay Area, ACT Courses & Classes in Chicago

Popular Test Prep

GMAT Test Prep in Houston, MCAT Test Prep in Miami, MCAT Test Prep in San Diego, SAT Test Prep in Los Angeles, MCAT Test Prep in Washington DC, LSAT Test Prep in Los Angeles, ISEE Test Prep in Denver, ACT Test Prep in Phoenix, GRE Test Prep in Houston, ISEE Test Prep in Boston

HIGH SCHOOL

GRADUATE SCHOOL

K-8

Search 50+ Tests

math tutoring

science tutoring

foreign languages

elementary tutoring

other

Search 350+ Subjects

Create an account to track your scores
and create your own practice tests:

All HiSET: Math Resources

Flashcards: Use statistics and data to gain information about a population

Flashcards: Use statistics and data to gain information about a population

Flashcards: Use statistics and data to gain information about a population

Flashcards: Use statistics and data to gain information about a population

Report an issue with this question

DMCA Complaint

Contact Information

Address

Complaint Details

Email address:
Your name:
Feedback:

HIGH SCHOOL

GRADUATE SCHOOL

K-8

Search 50+ Tests

math tutoring

science tutoring

foreign languages

elementary tutoring

other

Search 350+ Subjects

Create an account to track your scores and create your own practice tests:

All HiSET: Math Resources

Flashcards: Use statistics and data to gain information about a population

Flashcards: Use statistics and data to gain information about a population

Flashcards: Use statistics and data to gain information about a population

Flashcards: Use statistics and data to gain information about a population

Report an issue with this question

DMCA Complaint

Contact Information

Address

Complaint Details

Create an account to track your scores
and create your own practice tests: