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The Alpha level of a test (level of significance) represents the yardstick against which P-values are measured and the Null Hypothesis is rejected if the P-value is which of these?
Suggested Answer: A
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40 comments · newest first
VA
Vallie
10 months ago
Yup, less than Alpha for sure!
HU
Huey
11 months ago
I thought it was more complicated than just less than Alpha.
EU
Eun
11 months ago
Wait, are we sure about that? Seems too simple.
NI
Nikita
11 months ago
Agreed, that's how hypothesis testing works.
SA
Sarah
11 months ago
It's definitely less than the Alpha level!
VI
Viola
12 months ago
I feel like I’ve seen options like this before, and I’m leaning towards A as well. It just seems to fit the definition of significance testing.
GL
Glory
12 months ago
I keep mixing up Alpha and Beta levels. Is it really just about the P-value being less than Alpha?
AN
Annamae
12 months ago
I remember practicing a question like this, and I think the answer is A. Less than the Alpha level makes sense for rejecting the Null.
CA
Carlee
1 year ago
I think the P-value needs to be less than the Alpha level to reject the Null Hypothesis, but I'm not completely sure.
RE
Ressie
1 year ago
I feel confident about this. The p-value represents the probability of getting the observed result if the null hypothesis is true. The null is rejected if the p-value is less than the predetermined alpha level, which is the significance threshold.
AL
Alisha
1 year ago
Wait, I'm confused. Is it greater than or less than the alpha level? I need to review my notes on hypothesis testing to make sure I have this concept down.
MO
Moon
1 year ago
Okay, I've got this. The null hypothesis is rejected if the p-value is less than the alpha level. That's the key relationship I need to remember for this type of question.
ED
Edda
1 year ago
Hmm, I'm a bit unsure about this one. I know the alpha level is the significance threshold, but I can't quite recall how it's used to evaluate the p-value. I'll have to think this through carefully.
DE
Derrick
1 year ago
This seems like a straightforward question about hypothesis testing. I'll focus on remembering the definition of the alpha level and how it relates to the p-value.
AS
Ashleigh
1 year ago
Hmm, I'm a bit unsure about this. The question is asking about a specific feature of Cloud Pak for Watson AlOps, and I'm not too familiar with the details of that product. I'll have to think this through carefully.
LE
Lettie
1 year ago
Okay, let me think this through. The Automated Installer and JumpStart both handle OS installation, but they use different configuration files. I need to carefully match the equivalent functionality between the two.
WE
Weldon
1 year ago
I think I've seen that before, maybe in practice questions? If there's no “attachment” option, the paperclip is definitely worth a try!
AL
Aliza
1 year ago
I recall we did a practice question about successful contacts, and I think it focused on accessibility and performance, so maybe it's option B?
DE
Deonna
1 year ago
E is just trying to trip me up with that 'power of one minus Beta' nonsense. I'll stick with the good old A option!
SH
Shawnda
1 year ago
D seems logical, but the wording is a bit confusing. I'm going to go with A, since that's the classic rule for rejecting the Null Hypothesis.
LY
Lyda
1 year ago
Yeah, A is the safer choice in this case.
LE
Lenny
1 year ago
A is the classic rule for rejecting the Null Hypothesis, so it makes sense.
DA
Dahlia
1 year ago
I agree, D does seem a bit confusing. I'm going with A as well.
TH
Thaddeus
1 year ago
I think D is correct, but I see why it can be confusing.
AR
Arthur
1 year ago
Option C makes no sense. The Alpha level and P-value have nothing to do with the Beta level. This question is testing my understanding, not my guessing abilities.
CH
Chandra
1 year ago
C) Greater than the Beta and Alpha level.
LE
Leonida
1 year ago
B) Greater than the Alpha level.
CR
Cristina
1 year ago
A) Less than the Alpha level.
JA
Janna
1 year ago
Haha, I was sure it was B. Clearly, I need to review my stats textbook again. Back to the drawing board!
EL
Elouise
1 year ago
D) Less than one minus Alpha.
MO
Monroe
1 year ago
C) Greater than the Beta and Alpha level.
ST
Stefan
1 year ago
B) Greater than the Alpha level.
FA
Fatima
1 year ago
A) Less than the Alpha level.
MA
Matt
1 year ago
The correct answer is A. If the P-value is less than the Alpha level, we reject the Null Hypothesis. This is the standard statistical procedure.
ER
Erick
1 year ago
I'm not sure, but I think the answer might be D) Less than one minus Alpha.
MA
Mariann
1 year ago
I agree with Jina, because the Null Hypothesis is rejected when the P-value is less than the Alpha level.
JI
Jina
1 year ago
I think the answer is A) Less than the Alpha level.
LA
Lawana
1 year ago
I'm not sure, but I think it's D) Less than one minus Alpha because that's how we calculate the significance level.
LE
Leah
2 years ago
I agree with Danica, because the Null Hypothesis is rejected when the P-value is less than the Alpha level.
DA
Danica
2 years ago
I think the answer is A) Less than the Alpha level.