the accompanying data describe flexural strength (mpa) for concrete beams of a certain type. calculate a point estimate for the mean value of the strength of the population of beams manufactured in this fashion. 9.2 9.7 8.8 10.7 8.4 8.7 10.7 6.9 8.2 8.3 7.3 9.1 7.8 8.0 8.6 7.8 7.5 8.0 7.3 8.9 10.0 8.8 8.7 12.6 12.3 12.8 11.7
