Exposure to microbial products, especially endotoxin, may have an impact on vulnerability to allergic diseases. The following are data on concentration (EU/mg) in settled dust for one sample of urban homes and another of farm homes.
The following are data on concentration (EU/mg) in settled dust for one sample of urban homes and another of farm homes.
U: 6.0 5.0 11.0 33.0 4.0 5.0 80.0 18.0 35.0 17.0 23.0
F: 2.0 15.0 12.0 8.0 8.0 7.0 6.0 19.0 3.0 9.8 22.0 9.6 2.0 2.0 0.5
a. Determine the sample mean for each sample. (Round your answers to two decimal places.)
urban homes EU/mg
farm homes EU/mg
b. Determine the sample median for each sample.
urban homes EU/mg
farm homes EU/mg
c. Calculate the trimmed mean for each sample by deleting the smallest and largest observation. (Round your answers to two decimal places.)
urban homes EU/mg
farm homes EU/mg
What are the corresponding trimming percentages? (Round your answers to two decimal places.)
urban homes %
farm homes %