Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type. 6.8 7.2 6.3 7.7 11.6 5.8 7.0 8.7 9.7 10.7 9.7 8.6 6.5 7.8 11.3 11.8 7.8 7.1 6.8 6.3 7.7 8.1 7.9 7.0 7.3 9.0 7.4 (a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion. [Hint: Ex, = 219.6.] (Round your answer to three decimal places.) 8.1333. X MPa O p O s Os/X Ox State which estimator you used. OX (b) Calculate a point estimate of the strength value that separates the weakest 50% of all such beams from the strongest 50%. 14 X MPa State which estimator you used. O s Os/X O X Ox O p (c) Calculate a point estimate of the population standard deviation σ. [Hint: Ex2 = 1859.14.] (Round your answer to three decimal places.) 1.6764 MPa
Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type. 6.8 7.2 6.3 7.7 11.6 5.8 7.0 8.7 9.7 10.7 9.7 8.6 6.5 7.8 11.3 11.8 7.8 7.1 6.8 6.3 7.7 8.1 7.9 7.0 7.3 9.0 7.4 (a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion. [Hint: Ex, = 219.6.] (Round your answer to three decimal places.) 8.1333. X MPa O p O s Os/X Ox State which estimator you used. OX (b) Calculate a point estimate of the strength value that separates the weakest 50% of all such beams from the strongest 50%. 14 X MPa State which estimator you used. O s Os/X O X Ox O p (c) Calculate a point estimate of the population standard deviation σ. [Hint: Ex2 = 1859.14.] (Round your answer to three decimal places.) 1.6764 MPa
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Please assist with answering this question fully
![(c) Calculate a point estimate of the population standard deviation o. [Hint: Ex² = 1859.14.] (Round your answer to three decimal places.)
1.6764
✔ MPa
Interpret this point estimate.
This estimate describes the spread of the data.
O This estimate describes the center of the data.
O This estimate describes the linearity of the data.
O This estimate describes the bias of the data.
Which estimator did you use?
OS
O X
O p
Ox
Os/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.)
.1111
X
(e) Calculate a point estimate of the population coefficient of variation o/μ. (Round your answer to four decimal places.)
209
X
State which estimator you used.
Ox
OX
Op
ⒸS/X
Os](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa61d77b8-3322-4869-a508-5eb685631aec%2Fba517212-ebe1-430e-8824-70556034fd63%2Fd5sjsos_processed.png&w=3840&q=75)
Transcribed Image Text:(c) Calculate a point estimate of the population standard deviation o. [Hint: Ex² = 1859.14.] (Round your answer to three decimal places.)
1.6764
✔ MPa
Interpret this point estimate.
This estimate describes the spread of the data.
O This estimate describes the center of the data.
O This estimate describes the linearity of the data.
O This estimate describes the bias of the data.
Which estimator did you use?
OS
O X
O p
Ox
Os/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.)
.1111
X
(e) Calculate a point estimate of the population coefficient of variation o/μ. (Round your answer to four decimal places.)
209
X
State which estimator you used.
Ox
OX
Op
ⒸS/X
Os
![Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type.
6.8 7.2 6.3 7.7 11.6 5.8 7.0
8.7 9.7 10.7 9.7 8.6 6.5 7.8
11.3 11.8 7.8 7.1 6.8 6.3 7.7
8.1 7.9 7.0 7.3
9.0 7.4
(a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion. [Hint: Ex, = 219.6.] (Round
your answer to three decimal places.)
8.1333.
X MPa
O p
O s
Os/X
Ox
State which estimator you used.
OX
(b) Calculate a point estimate of the strength value that separates the weakest 50% of all such beams from the strongest 50%.
14
X MPa
State which estimator you used.
O s
Os/X
O X
Ox
O p
(c) Calculate a point estimate of the population standard deviation o. [Hint: Ex2 = 1859.14.] (Round your answer to three decimal places.)
1.6764
MPa](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa61d77b8-3322-4869-a508-5eb685631aec%2Fba517212-ebe1-430e-8824-70556034fd63%2Frza609f_processed.png&w=3840&q=75)
Transcribed Image Text:Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type.
6.8 7.2 6.3 7.7 11.6 5.8 7.0
8.7 9.7 10.7 9.7 8.6 6.5 7.8
11.3 11.8 7.8 7.1 6.8 6.3 7.7
8.1 7.9 7.0 7.3
9.0 7.4
(a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion. [Hint: Ex, = 219.6.] (Round
your answer to three decimal places.)
8.1333.
X MPa
O p
O s
Os/X
Ox
State which estimator you used.
OX
(b) Calculate a point estimate of the strength value that separates the weakest 50% of all such beams from the strongest 50%.
14
X MPa
State which estimator you used.
O s
Os/X
O X
Ox
O p
(c) Calculate a point estimate of the population standard deviation o. [Hint: Ex2 = 1859.14.] (Round your answer to three decimal places.)
1.6764
MPa
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