A Variable Contains Five Categories $\alpha$ = 01, the Critical Value of Chi-Square Is _______

question 46

Multiple Choice

A variable contains five categories.It is expected that data are uniformly distributed across these five categories.To test this, a sample of observed data is gathered on this variable resulting in frequencies of 27, 30, 29, 21, and 24.Using $\alpha$ = .01, the critical value of chi-square is _______.

• A)7.78
• B)15.09
• C)9.24
• D)13.28
• E)15.48

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Definitions:

Intercalated Discs

Intercalated discs are specialized connections between heart muscle cells (cardiomyocytes), facilitating coordinated contraction through electrical and mechanical linkage.

Gap Junctions

Specialized intercellular connections that allow for direct communication between cells through the exchange of ions and small molecules.

Cardiac Muscle

A type of involuntary striated muscle found exclusively in the heart, responsible for heart contractions.

Left Coronary Artery

The artery that supplies blood to the left side of the heart, branching into the circumflex and left anterior descending arteries.