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Exam DP-100 topic 1 question 28 discussion

Actual exam question from Microsoft's DP-100
Question #: 28
Topic #: 1
[All DP-100 Questions]

You have been tasked with ascertaining if two sets of data differ considerably. You will make use of Azure Machine Learning Studio to complete your task.
You plan to perform a paired t-test.
Which of the following are conditions that must apply to use a paired t-test? (Choose all that apply.)

  • A. All scores are independent from each other.
  • B. You have a matched pairs of scores.
  • C. The sampling distribution of d is normal.
  • D. The sampling distribution of x1- x2 is normal.
Show Suggested Answer Hide Answer
Suggested Answer: BC 🗳️
by Tsardoz at Jan. 16, 2022, 10:22 a.m.

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lookaaaa
Highly Voted 1 year, 6 months ago
Selected Answer: BC
A is for single sample t-test, D is for unpaired t-test, BC are for paired t-test
upvoted 9 times
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jdada
Highly Voted 6 months, 3 weeks ago
B. You have a matched pairs of scores. C. The sampling distribution of d is normal. D. The sampling distribution of x1- x2 is normal.
upvoted 6 times
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amittal09
Most Recent 2 weeks, 4 days ago
Selected Answer: AD
https://learn.microsoft.com/en-us/previous-versions/azure/machine-learning/studio-module-reference/test-hypothesis-using-t-test#bkmk_HowToChoose
upvoted 1 times
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MarinaMijailovic
11 months ago
C and D refer to the same thing
upvoted 1 times
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Ram19830916
1 year ago
A<B<C Choose a paired t-test when these conditions apply: You have a matched pairs of scores. For example, you might have two different measures per person, or matched pairs of individuals (such as a husband and wife). Each pair of scores is independent of every other pair. The sampling distribution of d is normal.
upvoted 1 times
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MarinaMijailovic
1 year, 3 months ago
Can someone explain what is d and what is x1-x2
upvoted 3 times
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WinnieS
1 year, 4 months ago
Selected Answer: BC
B and C are correct. A should change to EACH PAIR of scores is independent of other pairs, not ALL scores. D should change to C
upvoted 2 times
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meysa
1 year, 4 months ago
B and D are correct.
upvoted 2 times
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KIshor1212
1 year, 6 months ago
Selected Answer: BC
Choose a paired t-test when these conditions apply: ***---You have a matched pairs of scores. For example, you might have two different measures per person, or matched pairs of individuals (such as a husband and wife). Each pair of scores is independent of every other pair. *** --The sampling distribution of d is normal.
upvoted 4 times
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slcheng
1 year, 7 months ago
Selected Answer: BC
Choose a paired t-test when these conditions apply: You have a matched pairs of scores. For example, you might have two different measures per person, or matched pairs of individuals (such as a husband and wife). Each pair of scores is independent of every other pair. The sampling distribution of d is normal.
upvoted 1 times
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JTWang
1 year, 7 months ago
Selected Answer: BC
BC is the correct answer.
upvoted 2 times
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Vuuma
1 year, 8 months ago
Choose a paired t-test when these conditions apply: 1. You have a matched pairs of scores. For example, you might have two different measures per person, or matched pairs of individuals (such as a husband and wife). 2. Each pair of scores is independent of every other pair. 3.The sampling distribution of d is normal.
upvoted 2 times
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Vuuma
1 year, 8 months ago
Correct answer is BC
upvoted 1 times
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Chimman
2 years, 3 months ago
Clearly mentioned that it should be ABC as per the documentation. https://docs.microsoft.com/en-us/previous-versions/azure/machine-learning/studio-module-reference/test-hypothesis-using-t-test
upvoted 4 times
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[Removed]
2 years, 3 months ago
answer is correct. paired t-test when each PAIR of scores is independent of every other PAIR. not all scores are independent. https://docs.microsoft.com/en-us/previous-versions/azure/machine-learning/studio-module-reference/test-hypothesis-using-t-test
upvoted 2 times
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TheCyanideLancer
2 years, 4 months ago
As per MS documentation ans is ABC https://docs.microsoft.com/en-us/previous-versions/azure/machine-learning/studio-module-reference/test-hypothesis-using-t-test
upvoted 4 times
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Tsardoz
2 years, 4 months ago
Answer should be ABD not sure why it just chose AB
upvoted 2 times
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