Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type.
(a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion. (Round your answer to three decimal places.)
Answer=
(b) Calculate a point estimate of the strength value that separates the weakest 50% of all such beams from the strongest 50%.
Answer=
(c) Calculate a point estimate of the population standard deviation σ. (Round your answer to three decimal places.)
Answer=
(d) Calculate a point estimate of the proportion of all such beams whose flexural strength exceeds 10 MPa. (Round your answer to three decimal places.)
Answer=
(e) Calculate a point estimate of the population coefficient of variation σ/μ. (Round your answer to four decimal places.)
