Question

1 Hospital floors are usually covered by bare tiles. Carpets would cut down on noise but might be more likely to harbor germs. To study this possibility, investigators randomly assigned 8 of 16 available hospital rooms to have carpet installed. The others were left bare. Later, air from each room was pumped over a dish of agar (a gelatinous substance obtained from various kinds of red seaweed and used in biological culture media). The dish was incubated for a fixed period, and the number of bacteria colonies were counted. The response variable in this experiment is the 16 hospital rooms. whether the rooms had carpet or bare tiles the number of bacteria colonies. air from each room 2 The boxplot below shows the distribution of heights (in inches) of 16 undergraduate statistics students. Approximately what percentage of students have heights greater than 69 inches? Height (inches) 25%. 50% 75% It's impossible to tell from the given information

Answer 1

1.) Ans:Whether the rooms had carpet or bare tiles.

2.)

25 %ile 50% ile 75% ile 4 6667 Height Ginches

Percentage of students have highest greater than 69 inches=100-75=25%

Ans: 25%