
8.1
Authored by Darin Smyth
Mathematics
10th - 12th Grade
CCSS covered
Used 22+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Classify the two given samples as independent or dependent.
Sample 1: The scores of 22 students who took the ACT Sample 2: The scores of 22 different students who took the SAT
Dependent
Independent
No relationship
None of these
Tags
CCSS.HSS.CP.A.5
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
As part of a Masterʹs thesis project, a mathematics teacher is interested in the effects of two different teaching methods on mathematics achievement. She randomly chooses a class of students to learn one algebraic concept using traditional methods. Then on another day, the same students learn a similar algebraic concept using manipulatives. The teacher then compares their test scores. Determine whether the samples are dependent or independent.
No relationship
Independent
Dependent
None of these
Tags
CCSS.HSS.CP.A.5
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Find the standardized test statistic to test the claim that μ1 =μ2. Assume the two samples are random and independent.
Population statistics: σ1 = 2.5 and σ2 = 2.8
Sample statistics: x1 = 3, n1 = 40 and x2 = 4, n2 = 35
-0.8
-1.6
-2.6
-1.0
Tags
CCSS.HSS.ID.A.4
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Find the standardized test statistic to test the claim that μ1 >μ2. Assume the two samples are random and independent.
Population statistics: σ1 = 45 and σ2 = 25
Sample statistics: x1 = 480, n1 = 100 and x2 = 465, n2 = 125
0.91
1.86
2.81
2.99
Tags
CCSS.HSS.ID.A.4
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Suppose you want to test the claim that μ1 =μ2. Assume the two samples are random and independent. If a hypothesis test is performed, how should you interpret a decision that rejects the null hypothesis?
There is sufficient evidence to reject the claim μ1 =μ2.
There is not sufficient evidence to reject the claim μ1 =μ2.
There is sufficient evidence to support the claim μ1 =μ2.
There is not sufficient evidence to support the claim μ1 =μ2.
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Suppose you want to test the claim that μ1 >μ2. Assume the two samples are random and independent. At a level of significance of α = 0.01, should you reject the null or fail to reject the null?
Population statistics: σ1 = 45 and σ2 = 25
Sample statistics: x1 = 805, n1 = 100 and x2 = 790, n2 = 125
Reject Ho, there is enough evidence to REJECT the claim.
Reject Ho, there is enough evidence to SUPPORT the claim.
Fail to reject Ho, there is NOT enough evidence to SUPPORT the claim.
Fail to reject Ho, there is NOT enough evidence to REJECT the claim.
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Two samples are random and independent. Find the P-value used to test the claim that μ1 = μ2. Use α=0.05.
Population statistics: σ1 = 2.5 and σ2 = 2.8
Sample statistics: x1 = 12, n1 = 40 and x2 = 13, n2 = 35
p = 0.213
p = 0.621
p = 0.105
p = 0.402
Tags
CCSS.HSS.ID.A.4
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