Answer part B: Inside what interval is it guaranteed that at least 89% of the concentration observations will lie for the distribution in part (a)?

NSWERS PODSTAT6 4.4.047. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Mobile homes are tightly constructed for energy conservation. This can lead to a buildup of indoor pollutants. The paper "A Survey of Nitrogen Dioxide Levels Inside Mobile Homes"t discussed various aspects of NO, concentration in these structures. (a) For one sample of mobile homes in the Los Angeles area, the mean NO, concentration in kitchens during the summer was 36.56 ppb, and the standard deviation was 11.16. Making no assumptions about the shape of the NO, distribution, what can be said about the percentage of observations between 14.24 and 58.88? (Round the answer to the nearest whole number.) at least 75 % (b) Inside what interval is it guaranteed that at least 89% of the concentration observations will lie for the distribution in part (a)? Enter a number. (c) For a sample of mobile homes that were not in Los Angeles, the average kitchen NO, concentration during the winter was 22.12 ppb, and the standard deviation was 18.00. Do these values suggest that the histogram of sample observations did not closely resemble a normal curve? (Hint: What is x - 2s?) Yes No Need Help? Read It Submit