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How do they compare? O The average endotoxin concentration in farm homes is more than double the average concentration in urban homes. O The average endotoxin concentration is about the same in both urban and farm homes. The average endotoxin concentration in urban homes is more than double the average concentration in farm homes. (b) Determine the sample median for each sample. urban homes 17 8.6 EU/mg farm homes EU/mg How do they compare? O The median endotoxin concentration is about the same in both urban and farm homes. The median endotoxin concentration in urban homes is roughly double the median concentration in farm homes. O The median endotoxin concentration in farm homes is roughly double the median concentration in urban homes.

How do they compare? O The average endotoxin concentration in farm homes is more than double the average concentration in urban homes. O The average endotoxin concentration is about the same in both urban and farm homes. The average endotoxin concentration in urban homes is more than double the average concentration in farm homes. (b) Determine the sample median for each sample. urban homes 17 8.6 EU/mg farm homes EU/mg How do they compare? O The median endotoxin concentration is about the same in both urban and farm homes. The median endotoxin concentration in urban homes is roughly double the median concentration in farm homes. O The median endotoxin concentration in farm homes is roughly double the median concentration in urban homes.

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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How do they compare? The average endotoxin concentration in farm homes is more than double the average concentration in urban homes. The average endotoxin concentration is about the same in both urban and farm homes. O The average endotoxin concentration in urban homes is more than double the average concentration in farm homes. (b) Determine the sample median for each sample. urban homes 17 EU/mg farm homes 8.6 EU/mg How do they compare? The median endotoxin concentration is about the same in both urban and farm homes. O The median endotoxin concentration in urban homes is roughly double the median concentration in farm homes. The median endotoxin concentration in farm homes is roughly double the median concentration in urban homes. Why is the median for the urban sample so different from the mean for that sample? The mean and median for urban homes are so different because the few large values raise the mean but not the median. The mean and median for urban homes are so different because there are fewer observations. The mean and median for urban homes are so different because the measure different aspects of the distribution. (c) Calculate the trimmed mean for each sample by deleting the smallest and largest observation. (Round your answers to four decimal places.) urban homes 17 EU/mg farm homes 7.8692 EU/mg What are the corresponding trimming percentages? (Round your answers to two decimal places.) urban homes 92.87 % farm homes 91.50
Transcribed Image Text:How do they compare? The average endotoxin concentration in farm homes is more than double the average concentration in urban homes. The average endotoxin concentration is about the same in both urban and farm homes. O The average endotoxin concentration in urban homes is more than double the average concentration in farm homes. (b) Determine the sample median for each sample. urban homes 17 EU/mg farm homes 8.6 EU/mg How do they compare? The median endotoxin concentration is about the same in both urban and farm homes. O The median endotoxin concentration in urban homes is roughly double the median concentration in farm homes. The median endotoxin concentration in farm homes is roughly double the median concentration in urban homes. Why is the median for the urban sample so different from the mean for that sample? The mean and median for urban homes are so different because the few large values raise the mean but not the median. The mean and median for urban homes are so different because there are fewer observations. The mean and median for urban homes are so different because the measure different aspects of the distribution. (c) Calculate the trimmed mean for each sample by deleting the smallest and largest observation. (Round your answers to four decimal places.) urban homes 17 EU/mg farm homes 7.8692 EU/mg What are the corresponding trimming percentages? (Round your answers to two decimal places.) urban homes 92.87 % farm homes 91.50
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. U: 6.0 5.0 11.0 33.0 4.0 5.0 80.0 18.0 35.0 17.0 23.0 F: 4.0 16.0 10.0 8.0 9.0 9.0 2.0 17.0 4.0 8.6 24.0 9.7 4.0 1.0 0.8 n USE SALT (a) Determine the sample mean for each sample. (Round your answers to four decimal places.) urban homes 21.5455 EU/mg farm homes 8.4733 EU/mg
Transcribed Image Text: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. U: 6.0 5.0 11.0 33.0 4.0 5.0 80.0 18.0 35.0 17.0 23.0 F: 4.0 16.0 10.0 8.0 9.0 9.0 2.0 17.0 4.0 8.6 24.0 9.7 4.0 1.0 0.8 n USE SALT (a) Determine the sample mean for each sample. (Round your answers to four decimal places.) urban homes 21.5455 EU/mg farm homes 8.4733 EU/mg
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