onsider the accompanying data on flexural strength (MPa) for concrete beams of a certain type. 6.8 6.5 8.1 7.0 7.0 11.8 6.8 8.6 10.7 7.7 7.2 7.9 7.9 7.3

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Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type.
6.8
6.5
8.1
7.0
7.0
11.8
6.8
8.6 10.7
7.7 7.2 7.9
7.9 7.3
5.0 11.3
11.6 7.4 9.7
9.0
9.7
7.8
7.7
7.1
6.3 6.3
8.7
Transcribed Image Text:Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type. 6.8 6.5 8.1 7.0 7.0 11.8 6.8 8.6 10.7 7.7 7.2 7.9 7.9 7.3 5.0 11.3 11.6 7.4 9.7 9.0 9.7 7.8 7.7 7.1 6.3 6.3 8.7
(d) Calculate a point estimate of the proportion of all such beams whose flexural strength exceeds 10 MPa. [Hint: Think of an observation as a "success" if it exceeds 10.] (Round your answer
to three decimal places.)
(e) Calculate a point estimate of the population coefficient of variation o/µ. (Round your answer to four decimal places.)
Transcribed Image Text:(d) Calculate a point estimate of the proportion of all such beams whose flexural strength exceeds 10 MPa. [Hint: Think of an observation as a "success" if it exceeds 10.] (Round your answer to three decimal places.) (e) Calculate a point estimate of the population coefficient of variation o/µ. (Round your answer to four decimal places.)
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