Lunch break:In a recent survey of

657

working Americans ages

25

-

34

, the average weekly amount spent on lunch as

$45.30

with standard deviation

$2.80

.The weekly amounts are approximately bell-shaped.

Part:0 / 3

0 of 3 Parts Complete

Part 1 of 3

(a) Estimate the percentage of amounts that were less than

$42.50

.Round the answer to one decimal place.

Approximately % of the amounts were less than $42.50 .