102 Antigens for a parasitic roundworm in birds. Refer to the Gene Therapy and Molecular Biology (June 2009) study of DNA in peptide (protein) produced by antigens for a parasitic roundworm in birds, Exercise 45 . Recall that scientists tested each in a sample of 4 alleles of antigenproduced protein for level of peptide. The results were:

x = 1.43 and s = .13 . Use this information to construct a 90% confidence interval for the true variation in peptide scores for alleles of the antigen-produced protein.

Interpret the interval for the scientists.