Which Is a Valid Null Hypothesis

question 143

Multiple Choice

Which is a valid null hypothesis?

• A)H₀: μ ≠ 18
• B)H₀: μ = 18
• C)H₀: μ > 18
• D)H₀: μ < 18

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Definitions:

Frequency

The number of times an event or occurrence takes place within a specified period or dataset.

Symmetric

Refers to a situation where a distribution or pattern shows equality or uniformity across a central point or axis.

Histogram

A graphical representation of the distribution of numerical data, where the data are binned into ranges and each bin is represented by a bar with its height proportional to the frequency of data points in the bin.

Vertical Line

A line that runs up and down the page, having an undefined slope and typically used to represent the concept of infinity in coordinate geometry.