A supervisor is interested in the quality of senior high students in Public Schools at a certain district. Her basis for measuring quality is in terms of the IQ of these students. a. Ten randomly selected senior high students from Public School A were selected and their le are as follows: 110, 90. 98, 105, 115, 111,92,110,105,119. Assume their IQ scores to be normally distributed. Construct a 90% confidence interval for the true average IQ of all the seniors at Public School A. Interpret the resulting 90% confidence interval