Which of the Following Represents a Null Hypothesis?
A) $H _ { 1 } : \bar { X } _ { 1 } > \bar { X } _ { 2 }$

question 3

Multiple Choice

Which of the following represents a null hypothesis?

• A) \(H _ { 1 } : \bar { X } _ { 1 } > \bar { X } _ { 2 }\)
• B) \(H _ { 0 } : \mu _ { 1 } = \mu _ { 2 }\)
• C) \(H _ { 1 : } : \bar { X } _ { 2 } \neq \bar { X } _ { 2 }\)
• D) \(H _ { 0 } : \mu _ { 1 } > \mu _ { 2 }\)

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Definitions:

One-sided

A term used in hypothesis testing to describe a test where the alternative hypothesis specifies a direction of the difference or effect.

Alternative Hypothesis

A hypothesis that suggests there is a statistically significant effect or difference between two or more variables or groups.

Average Amount

The sum of values divided by the number of values, representing a central or typical value in a set of data.

Sleep

A naturally recurring state of rest for the mind and body, characterized by altered consciousness and reduced interactions with surroundings.