A Business Analyst Was Interested in the Variation of Sales

question 21

Multiple Choice

A business analyst was interested in the variation of sales income across four shops in a retail chain. He ran an ANOVA with the predictor variable 'shop location', which had four categories, 'High street', 'Outlet', 'Online' and 'Suburb'; the outcome variable was 'monthly sales income'. His ANOVA had an F-statistic of 98.12 (p 0.02) . How would you interpret his findings?

• A)There is no significant difference in monthly sales income by shop location
• B)There is a significant difference in monthly sales income by shop location.
• C)There is insufficient information; the results of Post hoc tests are needed.
• D)The results are ambiguous.

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Definitions:

Cerebrospinal Fluid

A clear, colorless body fluid found in the brain and spinal cord, acting as a cushion for the brain's cortex, providing basic mechanical and immunological protection.

Cells

The basic structural, functional, and biological unit of all known living organisms, serving as the building blocks of life.

Glial Cell

Non-neuronal cells in the central and peripheral nervous system that support, protect, and nourish neurons.

Blood-Brain Barrier

A selective permeability barrier that protects the brain from foreign substances in the blood that may injure the brain.