Katie Sr Yr stats sample problem 16

Quiz
•
Mathematics
•
9th - 12th Grade
•
Easy
Standards-aligned
C Brown
Used 1+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Problem 17: Study Method Comparison
A professor wants to know whether students who use flashcards perform better than those who use highlighting when preparing for exams.
Two independent samples of students were tested.
The table below shows their test scores out of 100:
Part 1: What type of test is appropriate for this scenario?
Paired sample t-test
2-sample t-test (independent samples)
2-proportion z-test
1-sample t-test
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Part 2: What are the correct null and alternative hypotheses?
H0:μ1=μ2,H1:μ1≠μ2
H0:μ1=μ2,H1:μ1>μ2
H0:μ1>μ2,H1:μ1=μ2
H0:μ1≠μ2,H1:μ1=μ2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Part 3: What are the sample means and standard deviations?
xˉ1=90.5, s1=3.5; xˉ2=82.3, s2=2.7
xˉ1=87.2, s1=2.3; xˉ2=79.6, s2=3.1
xˉ1=89.25, s1=2.71; xˉ2=79.75, s2=2.43
xˉ1=88.0, s1=3.8; xˉ2=80.0, s2=2.5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Part 4: What is the value of the test statistic?
6.91
4.13
7.42
5.25
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Part 5: What is the approximate P-value?
0.004
0.0001
< 0.0001
0.012
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Part 6: What is the correct decision at α=0.05?
Fail to reject H0
Reject H0
Increase the significance level
Retest with a paired design
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Part 7: What is the correct conclusion based on the hypothesis test?
There is strong evidence that flashcard users score higher.
There is not enough evidence that flashcards work.
Highlighting is significantly better than flashcards.
Both methods are equally effective.
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Part 8: What is the 95% confidence interval for the difference in test scores (flashcards - highlighting)?
(6.75, 12.25)
(4.81, 13.2)
(5.45, 11.3)
(7.11, 12.89)
Tags
CCSS.HSS.IC.B.4
Similar Resources on Wayground
8 questions
Confidence Intervals for Difference in Means

Quiz
•
12th Grade - University
13 questions
Which Inference Procedure?

Quiz
•
11th - 12th Grade
10 questions
Confidence Interval for Difference of Means

Quiz
•
12th Grade - University
12 questions
Katie Sr Yr Stats final practice set 6 (problem 13)

Quiz
•
9th - 12th Grade
8 questions
Katie Sr Yr stats practice set 8 #1

Quiz
•
9th - 12th Grade
10 questions
Statistics Semester Review

Quiz
•
9th - 12th Grade
10 questions
Statistics Final Exam

Quiz
•
9th - 12th Grade
10 questions
Statistics Final Exam Review

Quiz
•
9th - 12th Grade
Popular Resources on Wayground
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System

Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice

Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers

Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons

Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review

Quiz
•
10th Grade