Please be sure to explain in-depth how you came about each solution. Thanks.

35. The diameter length of contact windows used in integrated circuits is normally distributed. About 5% of all lengths exceed 3.75 m, and about 1% of all lengths exceed 3.85 m. What are the mean value and standard deviation of the length distribution?

40. Recall from Exercise 2 the data on the 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 14.0 11.0 9.0 9.0 8.0 4.0 20.0 5.0 8.9 21.0 9.2 3.0 2.0 0.3 a. Determine the medians, quartiles, and IQRs for the two samples. b. Are there any outliers in either sample? Any extreme outliers? c. Construct a comparative boxplot and use it as a basis for comparing and contrasting the two samples.