Question

(a) Refer to the data on median family income in Table 7.1. The five-number summary for the family income data is as follows.

		$74,073
	$66,880		$83,648
	$56,994		$105,348

Using the definition of an outlier, where an outlier is defined to be any value that is more than1.5 ✕ IQR beyond the closest quartile, what income value would be an outlier at the upper end (in $)?

$ ___

Determine if there are any outliers, and if so, which values are outliers. (Enter your answers as a comma-separated list. Do not include units in your answer. If there are no outliers, enter NONE.)

___

(b) Suppose a set of test scores is approximately bell-shaped, with a mean of 80 and a range of 20. Approximately, what would the minimum and maximum test scores be (in points)?

minimum___ points

maximum___ points

Answer 1