Here are the names of 12 orchestra conductors and their performance times in minutes for Beethoven’s Ninth Symphony: Bernstein 71.03 Furtw€angler 74.38 Leinsdorf 65.78 Ormandy 64.72 Solti 74.70 Szell 66.22 Bohm 72.68 Karajan 66.90 Masur 69.45 Rattle 69.93 Steinberg 68.62 Tennstedt 68.40 a. Check to see that normality is a reasonable assumption for the performance time distribution. b. Compute a 95% CI for the population standard deviation, and interpret the interval. c. Supposedly, classical music is 100% determined by the composer’s notation, including all timings. Based on your results, is this true or false?