From a Population That Is Not Normally Distributed and Whose

question 36

Multiple Choice

From a population that is not normally distributed and whose standard deviation is not known, a sample of 50 items is selected to develop an interval estimate for µ. Which of the following statements is true?​

• A) ​The standard normal distribution can be used.
• B) ​The t distribution with 50 degrees of freedom must be used.
• C) ​The t distribution with 49 degrees of freedom must be used.
• D) ​The sample size must be increased in order to develop an interval estimate.

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Definitions:

Myofibrils

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

Sarcomere

The basic contractile unit of muscle fiber, consisting of actin and myosin filaments between two Z lines.

Z Disk

Delicate, membranelike structure found at each end of a sarcomere to which actin myofilaments attach.

T Tubule

T Tubules, or transverse tubules, are extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells, playing a crucial role in muscle contraction.