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Which of the following is a valid null hypothesis?
Suggested Answer: D
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41 comments · newest first
SA
Sanda
10 months ago
Yup, D is definitely the right choice here!
DA
Dan
11 months ago
A and B don't fit the null hypothesis definition.
DE
Dell
11 months ago
Wait, mu = 110? That seems kinda random...
BE
Bernardine
11 months ago
Totally agree, D is the way to go!
MU
Muriel
11 months ago
Null hypothesis should state equality, so D is valid.
KR
Kris
12 months ago
I feel confused because I thought null hypotheses could also be about inequalities, but now I’m not so sure.
MA
Margot
12 months ago
I practiced a question similar to this, and I recall that null hypotheses often involve a specific value, which makes me lean towards D as well.
CA
Caitlin
12 months ago
I'm not entirely sure, but I remember something about null hypotheses usually being about equality, so C seems off to me.
ER
Ernestine
1 year ago
I think a null hypothesis should state something like "mu = value," so maybe D is the right choice?
LO
Louisa
1 year ago
Hmm, the null hypothesis needs to be a testable statement about a population parameter. I think option D, "mu = 110," could work, but I'll review the others just to make sure.
LA
Lashawna
1 year ago
I'm a bit confused on this one. The null hypothesis is supposed to be a specific numerical value, right? I'm not sure any of these options fully fit that criteria.
SH
Shay
1 year ago
I've got this! The null hypothesis is a statement of no difference or no effect. Option C clearly fits that description, so that's my pick.
LE
Leanna
1 year ago
Okay, let me see here. The null hypothesis is usually stated in terms of a parameter, like the mean or proportion. I think option C looks promising, but I'll double-check the others just to be sure.
KA
Katie
1 year ago
Hmm, this is a tricky one. I'll need to think carefully about the definition of a null hypothesis to determine which of these options is valid.
LA
Laine
2 years ago
This exam question is making me hungry. I wonder if the null hypothesis involves the mean number of cookies in a jar?
TE
Telma
2 years ago
D) mu = 110
BE
Bettina
2 years ago
C) The mean of population A is not equal to the mean of population B
JA
Jacqueline
2 years ago
B) < 98
MA
Matt
2 years ago
A) p > 1/8
NA
Nathalie
2 years ago
B) < 98. What kind of null hypothesis is this? It doesn't make much sense to me.
CH
Cherry
2 years ago
D) mu = 110
CA
Caprice
2 years ago
B) < 98. That does seem like an odd null hypothesis.
GE
Georgiana
2 years ago
C) The mean of population A is not equal to the mean of population B
LO
Lou
2 years ago
A) p > 1/8
LA
Launa
2 years ago
A) p > 1/8. Hmm, I'm not sure if an inequality is considered a valid null hypothesis.
GE
German
2 years ago
D) mu = 110. This is clearly stating a specific parameter value, which is a valid null hypothesis.
EM
Emeline
2 years ago
D) mu = 110
AN
Angella
2 years ago
D) mu = 110
JO
Joni
2 years ago
C) The mean of population A is not equal to the mean of population B
MY
Myra
2 years ago
C) The mean of population A is not equal to the mean of population B
DO
Dona
2 years ago
B) < 98
JO
Jodi
2 years ago
B) < 98
NA
Nathalie
2 years ago
A) p > 1/8
JU
Judy
2 years ago
A) p > 1/8
LA
Layla
2 years ago
I'm not sure about the other options, but D) mu = 110 seems like a reasonable null hypothesis to me.
ED
Edda
2 years ago
C) The mean of population A is not equal to the mean of population B. This seems like a valid null hypothesis to me.
MA
Malika
2 years ago
C) The mean of population A is not equal to the mean of population B
LO
Lorenza
2 years ago
B) < 98
HU
Huey
2 years ago
A) p > 1/8
LI
Lindsey
2 years ago
I agree with Callie. Option D) mu = 110 makes sense as a null hypothesis.
CA
Callie
2 years ago
I think option D) mu = 110 is a valid null hypothesis.