Maureen McIlvoy, Owner and CEO of a Mail Order Business $\alpha$

question 73

Multiple Choice

Maureen McIlvoy, owner and CEO of a mail order business for wind surfing equipment and supplies, is reviewing the order filling operations at her warehouses.Her goal is 100% of orders shipped within 24 hours.In previous years, neither warehouse has achieved the goal, but the West Coast Warehouse has consistently out-performed the East Coast Warehouse.Her staff randomly selected 200 orders from the West Coast Warehouse (population 1) and 400 orders from the East Coast Warehouse (population 2) , and reports that 190 of the West Coast Orders were shipped within 24 hours, and the East Coast Warehouse shipped 356 orders within 24 hours.Assuming $\alpha$ = 0.05, the observed z value is ___________________.

• A)-3.15
• B)2.42
• C)1.53
• D)0.95
• E)1.05

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Definitions:

Degrees Of Freedom

Represents the number of independent values or quantities which can vary in the analysis without violating any constraints.

Correlated

Describes the relationship between two variables where changes in one variable are associated with changes in another.

Null Hypothesis

A hypothesis that suggests there is no statistical significance in a set of given observations, implying no effect or relationship.

Linear Relationship

A relationship between two variables where the change in one variable is directly proportional to the change in another variable.