For quartiles 1 and 3, use the quartile function in Excel:

=QUARTILE([data range], [quartile number])

[Summarize your sample data, describing the center, spread, and shape in context.]

For shape, think about the distribution: skewed or symmetric.]

Check the assumptions by determining if the normal condition has been met. Determine if there are any other conditions that you should check and whether they have been met.]

Think about the central limit theorem and sampling methods.

This is my data

Cost Per Sq Ft 120 140 100 60 80 20 40 0 [$41, $53] ($53, $65] ($65, $77] ($77, $89] ($89, $101] ($101, $113] ($113, $125] Listing Prices of homes in the East South Central Region Liting Price ($125, $137] ($137, $149] ($149, $161] ($161, $173] ($173, $185] ($185, $197] ($197, $209] ($209, $221]