Confident Intervals Quiz

Froggy Jumps

Played 5

Create copy

About this activity

Aiming for accurate estimates

Created by

Aidan Puck

United States

Download the paper version to play

Top 10 results

#	Player	Accuracy	time
1	Aidan Puck May 8, 2026	% 5	00:23

Do you want to stay in the Top 10 of this game? Log in to identify yourself.

Make your own free game from our game creator

Compete against your friends to see who gets the best score in this game

Make challenge

The Integumentary System

Breanna Nesbitt

United States

(58)

Functions and Structures of the skin
pizza

Lorelay Tyana

Romania

(259)

joc despre pizza
Ethos, Pathos, and Logos Quiz

Kristine Vester

United States

(131)

Test your knowledge of ethos, pathos, and logos with these 10 questions on examples of persuasive techniques.
Phlebotomy Order of Draw Quiz

Pamela Chapman

United States

(59)

Test your knowledge of the order of draw in Phlebotomy with these 10 questions!
Bill of Rights Game - The Constitutionalist

Doni The Don

United States

(89)

Test your knowledge on the Bill of Rights. A fun way to test your knowledge and focus on where you need to improve.

		%
	Anonymous	%
		%
		%

Print your game

Confident Intervals Quiz


Froggy Jumps Confident Intervals QuizOnline version Aiming for accurate estimates by Aidan Puck 1 What is a confidence interval? a The exact value of the population parameter b A range within which the true parameter lies with a given probability c A single point estimate of a parameter 2 What does a 95% confidence level mean? a There is a 95% chance the parameter is in this interval b If we repeated the study many times, 95% of the intervals would contain the true parameter c 98% of samples will produce this exact interval 3 Which component is NOT needed to compute a CI for a mean with known sigma? a Sample median b Standard deviation (sigma) c Sample mean 4 Which factor affects the width of a CI? a Population size b Sample size c Number of outliers 5 What happens to the CI width if confidence level increases? a It stays the same b Width decreases c Width increases 6 Which method is common for large samples to estimate a mean CI? a T-test for a proportion b Z-interval c Chi-squared interval 7 Which condition makes a CI for a mean unreliable? a Normal population with big n b Large sample with known variance c Small sample size with unknown sigma 8 What is the relationship between confidence level and alpha? a Alpha is the square root of n b Alpha equals the CI width c Alpha is 1 minus the confidence level 9 Which interval is typically used when sigma is unknown and n is small? a Bootstrap interval b Normal z-interval c Student's t-interval 10 What does margin of error depend on? a Critical value, standard error, and sample size b Sample mean only c Population variance only 11 What does a 95% confidence interval mean in the long run? a The sample mean lies 95% of the time inside the interval b If we repeated many samples, 95% of the intervals would contain the true parameter c The true parameter has a 95% chance of lying in the interval 12 Which value is typically used to construct a classical CI for a mean when n is large? a F statistic b Chi-square statistic c Z statistic (or t when sigma is unknown) 13 If the margin of error increases, what happens to the width of the CI? a The interval becomes narrower b The confidence level automatically decreases c The interval becomes wider 14 What effect does increasing the sample size have on a CI for a fixed confidence level? a The CI usually becomes narrower b The CI widens c The confidence level increases automatically 15 A 90% CI is reported vs a 95% CI. Which is wider? a 95% CI is wider b 90% CI is wider c Both have the same width 16 What is the relationship between confidence level and margin of error? a Higher confidence level increases the margin of error b Margin of error is independent of confidence level c Higher confidence level decreases the margin of error 17 Which assumption is essential for a CI for a mean with known sigma? a Data must be non-negative b Population is normal or sample size large c Population variance must be zero 18 If a 95% CI for a mean is [5, 9], what is the point estimate? a 9 b 5 c 7 19 Which formula is commonly used for CIs with unknown sigma? a Mean ± z(s/√n) b Mean ± t(s/√n) c Mean ± chi-squared*(s/√n) 20 What does a narrow CI imply about the estimate? a There is more precision about the parameter b There is less precision c The confidence level is invalid

You can integrate the game into an LMS compatible with LTI 1.1 or LTI 1.3 such as Canvas, Moodle, or Blackboard. This way, the scores will be automatically saved into the platform’s gradebook.

Confident Intervals Quiz

Froggy Jumps

About this activity

Created by

Download the paper version to play

Top Games

Froggy Jumps

The Integumentary System

Froggy Jumps

pizza

Froggy Jumps

Ethos, Pathos, and Logos Quiz

Froggy Jumps

Phlebotomy Order of Draw Quiz

Froggy Jumps

Bill of Rights Game - The Constitutionalist

Froggy Jumps

Confident Intervals QuizOnline version

by Aidan Puck

What is a confidence interval?

What does a 95% confidence level mean?

Which component is NOT needed to compute a CI for a mean with known sigma?

Which factor affects the width of a CI?

What happens to the CI width if confidence level increases?

Which method is common for large samples to estimate a mean CI?

Which condition makes a CI for a mean unreliable?

What is the relationship between confidence level and alpha?

Which interval is typically used when sigma is unknown and n is small?

What does margin of error depend on?

What does a 95% confidence interval mean in the long run?

Which value is typically used to construct a classical CI for a mean when n is large?

If the margin of error increases, what happens to the width of the CI?

What effect does increasing the sample size have on a CI for a fixed confidence level?

A 90% CI is reported vs a 95% CI. Which is wider?

What is the relationship between confidence level and margin of error?

Which assumption is essential for a CI for a mean with known sigma?

If a 95% CI for a mean is [5, 9], what is the point estimate?

Which formula is commonly used for CIs with unknown sigma?

What does a narrow CI imply about the estimate?