I'm not sure why that one incorrect section is incorrect. I'm guessing it might have something to do with my calculations. Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type.9.76.39.07.27.8 7.47.96.87.05.311.8 8.78.16.87.311.67.77.76.3 9.7 11.37.16.510.77.0 8.19.0(a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion. [Hint: Ex¡ = 219.8.] (Round your answer to three decimal places.)8.141MPаState which estimator you used.Os/x(b) Calculate a point estimate of the strength value that separates the weakest 50% of all such beams from the strongest 50%.7.7MPaState which estimator you used.O s /x(c) Calculate a point estimate of the population standard deviation o. [Hint: Ex;² = 1865.4.] (Round your answer to three decimal places.)1.71MPаO O (c) Calculate a point estimate of the population standard deviation o. [Hint: Ex;² = 1865.4.] (Round your answer to three decimal places.)1.71MPaInterpret this point estimate.This estimate describes the bias of the data.This estimate describes the linearity of the data.This estimate describes the center of the data.This estimate describes the spread of the data.Which estimator did you use?s/ x(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.).148(e) Calculate a point estimate of the population coefficient of variation o/µ. (Round your answer to four decimal places.)21.0054State which estimator you used.s/x

From the corrects answers the information is provided as: x=8.141 s=1.71

Answered: (e) Calculate a point estimate of the…

(e) Calculate a point estimate of the population coefficient of variation a/ u. (Round your answer to four decimal places.) 21.0054 State which estimator you used. O O

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

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I'm not sure why that one incorrect section is incorrect. I'm guessing it might have something to do with my calculations.

Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type.
9.7
6.3
9.0
7.2
7.8 7.4
7.9
6.8
7.0
5.3
11.8 8.7
8.1
6.8
7.3
11.6
7.7
7.7
6.3 9.7 11.3
7.1
6.5
10.7
7.0 8.1
9.0
(a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion. [Hint: Ex¡ = 219.8.] (Round your answer to three decimal places.)
8.141
MPа
State which estimator you used.
Os/x
(b) Calculate a point estimate of the strength value that separates the weakest 50% of all such beams from the strongest 50%.
7.7
MPa
State which estimator you used.
O s /x
(c) Calculate a point estimate of the population standard deviation o. [Hint: Ex;² = 1865.4.] (Round your answer to three decimal places.)
1.71
MPа
O O

(c) Calculate a point estimate of the population standard deviation o. [Hint: Ex;² = 1865.4.] (Round your answer to three decimal places.)
1.71
MPa
Interpret this point estimate.
This estimate describes the bias of the data.
This estimate describes the linearity of the data.
This estimate describes the center of the data.
This estimate describes the spread of the data.
Which estimator did you use?
s/ x
(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.)
.148
(e) Calculate a point estimate of the population coefficient of variation o/µ. (Round your answer to four decimal places.)
21.0054
State which estimator you used.
s/x

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