Author Question: The personnel director at a large company would like to determine whether the company cafeteria is ... (Read 125 times)

karateprodigy · **on:** Jul 24, 2018

The personnel director at a large company would like to determine whether the company cafeteria is widely used by employees.

She calls each employee and asks them whether they usually bring their own lunch, eat at the company cafeteria, or go out for lunch. A) observational study B) experiment

Question 2

A survey conducted in one U.S. city together with information from the census bureau yielded the following table. The first two columns give a percentage distribution of adults in the city by ethnic group.

The third
column gives the percentage of people in each ethnic group who have health insurance. Round to the nearest
thousandth.
Ethnic Group Percentage Percentage with
of adults health insurance
Caucasian 49.0 75
African American 12.1 46
Hispanic 18.7 51
Asian 10.8 61
Other 9.4 49
Determine the probability that a randomly selected adult has health insurance.
A) 0.630 B) 0.564 C) 0.063 D) 0.584