100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Elementary Statistics (STATs 2023) Final_Review_Exam_2 with 100% Correct answers $14.99   Add to cart

Exam (elaborations)

Elementary Statistics (STATs 2023) Final_Review_Exam_2 with 100% Correct answers

 5 views  0 purchase

Elementary Statistics (STATs 2023)

Preview 3 out of 23  pages

  • September 7, 2024
  • 23
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
All documents for this subject (21)
avatar-seller
YourAssignmentHandlers
Determine the Point Estimate for a Population Proportion
Question 1 0..333333333 points

Determine the point estimate.


A survey of 500 likely voters showed that 385 felt that the economy was the most important national issue.

Find a point estimate (p-hat) for p, the population proportion of voters who feel the economy is the most
important national issue.

Question options:


385


1.30


0.77


0.08

Identify the Point Estimate from a Confidence Interval
Question 2 0..333333333 points

Determine the margin of error.

It has been determined with 95% confidence that the proportion of Americans who eat turkey on Thanksgiving
is between 0.78 and 0.82.

Determine the margin of error associated with this confidence interval.

Question options:


±0.95

±0.0
4

±0.1

, 0

±0.0
2

±0.0
5
Identify the Margin of Error from a Confidence Interval
Question 3 0..333333333 points

Determine the point estimate.

It has been determined with 95% confidence that the proportion of Americans who eat turkey on Thanksgiving
is between 0.78 and 0.82.

Determine the sample proportion that was used to build this confidence interval.

Question options:


0.95


0.80


0.05


0.82


0.78

Constructing a Confidence Interval given a Point Estimate and Margin of Error
Question 4 0..333333333 points

Determine the specified confidence interval.

An article estimates, with 90% confidence, that the proportion of elementary school teachers who are female is
82%. The article also specifies a margin of error equal to 0.03.

Determine the resulting 90% confidence interval for the proportion of elementary school teachers who are
female.

, Question options:


(0.82 , 0.85)


(0.79 , 0.85)


(0.805 , 0.835)


(0.79 , 0.82)


(0.87 , 0.93)

Constructing a Confidence Interval for a Mean given S
Question 5 0..333333333 points

Construct the requested confidence interval.

A meteorologist was interested in the average speed of a thunderstorm in his area. He sampled 13 thunderstorms
and found that the average speed at which they traveled across the area was 15 miles per hour with a sample
standard deviation of 1.7 miles per hour.

Assuming the speed of a thunderstorm is approximately normal, construct a 99% confidence interval for the
true average speed of a thunderstorm in his area.

Question options:


(10.6, 19.4)


(13.8, 16.2)


(13.6, 16.4)


(5.2, 24.8)


(14.2, 15.8)

Constructing a Confidence Interval for a Proportion
Question 6 0..333333333 points

Construct the requested confidence interval.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller YourAssignmentHandlers. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $14.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

75323 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$14.99
  • (0)
  Add to cart