The Number of Wins in a Season for 32 Randomly $\sigma$

question 62

Short Answer

The number of wins in a season for 32 randomly selected professional football teams are listed below.
Construct a 90% confidence interval for the true mean number of wins in a season. Assume that $\sigma$ is 2.6.
$$\begin{array} { l l l l l l l l } 9 & 9 & 9 & 8 & 10 & 9 & 7 & 2 \\\\11 & 10 & 6 & 4 & 11 & 9 & 8 & 8 \\\\12 & 10 & 7 & 5 & 12 & 6 & 4 & 3 \\\\12 & 9 & 9 & 7 & 10 & 7 & 7 & 5\end{array}$$

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Definitions:

Anterior Cervical Triangle

An anatomical area of the neck outlined by the mandible, the sternocleidomastoid muscle, and the midline of the neck.

Posterior Cervical Triangle

An anatomical area of the neck bounded by the sternocleidomastoid muscle, the trapezius muscle, and the clavicle, containing several important structures including nerves and lymph nodes.

Sternocleidomastoid

A neck muscle that extends from the sternum and clavicle to the mastoid process of the temporal bone, involved in rotating and flexing the head.

Sternomastoid

A muscle in the neck that rotates and flexes the head, also known as the sternocleidomastoid muscle.