A Meteorologist Stated That the Average Temperature During July in Chattanooga

question 64

Multiple Choice

A meteorologist stated that the average temperature during July in Chattanooga was 80 degrees. A sample of 32 Julys was taken. The correct set of hypotheses is

• A)H₀: \(\mu\) < 80 H_a: \(\mu\) \(\le\) 80
• B)H₀: \(\mu\) \(\le\) 80 H_a: \(\mu\) > 80
• C)H₀: \(\mu\) \(\neq\) 80 H_a: \(\mu\) = 80
• D)None of the other answers are correct.

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Definitions:

Null Hypotheses

A statement used in statistical testing that assumes no effect or no difference between groups or variables, serving as the default statement to be tested against.

Alternative Hypotheses

A statement in statistical analysis that proposes a difference or effect, in contrast to the null hypothesis which suggests no effect or relationship.

Error Mean Square

A measure used in statistics to quantify the average of squares of errors or deviations.

Sums of Squared Deviations

The total of the squared differences between each observation in a data set and the mean of that data set, used in various statistical methods to measure variability.