The Numbers of Advertisements Seen or Heard in One Week $\sigma$

question 59

Short Answer

The numbers of advertisements seen or heard in one week for 30 randomly selected people in the United States
are listed below. Construct a 95% confidence interval for the true mean number of advertisements. Assume
that $\sigma$ is 159.5. $$\begin{array} { l l l l l l l l l l } 598 & 494 & 441 & 595 & 728 & 690 & 684 & 486 & 735 & 808 \\\\481 & 298 & 135 & 846 & 764 & 317 & 649 & 732 & 582 & 677 \\\\734 & 588 & 590 & 540 & 673 & 727 & 545 & 486 & 702 & 703\end{array}$$

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Definitions:

Popliteal Fossa

The shallow depression located at the back of the knee joint, bordered by muscles and bone structures.

Plantar Flex

The movement of the foot that increases the angle between the foot and the leg, as in standing on tiptoe.

Multinucleated

Describes cells that have more than one nucleus, often found in certain muscle fibers and some types of bone cells.

Skeletal Muscle

A type of muscle that is connected at either or both ends to a bone and so move parts of the skeleton; it is under voluntary control.