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:

T Distribution

A type of probability distribution that is symmetric and bell-shaped, used in statistics for small sample sizes when the population standard deviation is unknown.

Sample Sizes

Refers to the number of individual samples or observations used in a survey or experimental study.

Interval Estimate

A range of values constructed from sample data within which the population parameter is estimated to lie, given a specified level of confidence.

Point Estimate

A point estimate is a single value given as the best estimate of an unknown population parameter based on sample data.