The Owner of a Small Convenience Store Is Trying to Decide

question 77

Essay

The owner of a small convenience store is trying to decide whether to discontinue selling magazines. He suspects that only 5% of the customers buy a magazine and thinks that he might be able to use the display space to sell something more profitable. Before making a final decision he decides that for one day he'll keep track of the number of customers and whether or not they buy a magazine.
-Surprised by the high number of customers who purchased magazines that day, the owner decided that his 5% estimate must have been too low. How many magazine sales would it have taken to convince you? Justify your answer.

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Definitions:

Sarcolemma

The cell membrane of a muscle fiber that encloses its cytoplasm and all its components.

Skeletal Muscle

A type of striated muscle tissue connected to bones, primarily responsible for voluntary movement and controlled by the somatic nervous system.

Myoblasts

Precursor cells that can differentiate into muscle tissue during growth or the healing process.

Myofibrils

Long, filamentous organelles found in muscle cells that are crucial for muscle contraction and composed of sarcomeres.