Jerold
2020-11-02
Answered

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Mitchel Aguirre

Answered 2020-11-03
Author has **94** answers

Ratios are typically written as

The decimals in order from least to greatest is 2.25, 2.5, 2.857, 3.3¯, 22.16.

The ratios in order from least to greatest is then

asked 2021-05-14

Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type.

$\begin{array}{|ccccccc|}\hline 11.8& 7.7& 6.5& 6.8& 9.7& 6.8& 7.3\\ 7.9& 9.7& 8.7& 8.1& 8.5& 6.3& 7.0\\ 7.3& 7.4& 5.3& 9.0& 8.1& 11.3& 6.3\\ 7.2& 7.7& 7.8& 11.6& 10.7& 7.0\\ \hline\end{array}$

a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion.$[Hint.\text{}?{x}_{j}=219.5.]$ (Round your answer to three decimal places.)

MPa

State which estimator you used.

$x$

$p?$

$\frac{s}{x}$

$s$

$\stackrel{~}{\chi}$

b) Calculate a point estimate of the strength value that separates the weakest$50\mathrm{\%}$ of all such beams from the strongest $50\mathrm{\%}$ .

MPa

State which estimator you used.

$s$

$x$

$p?$

$\stackrel{~}{\chi}$

$\frac{s}{x}$

c) Calculate a point estimate of the population standard deviation ?.$[Hint:\text{}?{x}_{i}2=1859.53.]$ (Round your answer to three decimal places.)

MPa

Interpret this point estimate.

This estimate describes the linearity of the data.

This estimate describes the bias of the data.

This estimate describes the spread of the data.

This estimate describes the center of the data.

Which estimator did you use?

$\stackrel{~}{\chi}$

$x$

$s$

$\frac{s}{x}$

$p?$

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$\frac{?}{?}$ . (Round your answer to four decimal places.)

State which estimator you used.

$p?$

$\stackrel{~}{\chi}$

$s$

$\frac{s}{x}$

$x$

a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion.

MPa

State which estimator you used.

b) Calculate a point estimate of the strength value that separates the weakest

MPa

State which estimator you used.

c) Calculate a point estimate of the population standard deviation ?.

MPa

Interpret this point estimate.

This estimate describes the linearity of the data.

This estimate describes the bias of the data.

This estimate describes the spread of the data.

This estimate describes the center of the data.

Which estimator did you use?

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

State which estimator you used.

asked 2022-08-06

(a) The complex conjugate of 1 +8/ is 1 +8

(b) 8 +8)

(b) 8 +8)

asked 2022-07-09

How do you solve: $\frac{{x}^{2}-9}{{x}^{2}-1}<0$ ?

asked 2022-07-02

How do you solve $38.25>-2q+29.5$ ?

asked 2022-08-03

find the number of soloution to the equation x^9=e

in the group z18

how many solution are to the equation x^3=e in this group?

how many element of order 9 are in this group?

hint; for an element to be of order 9 , it must solve x^9=e , and not solve x^n=e for any lower value of n

in the group z18

how many solution are to the equation x^3=e in this group?

how many element of order 9 are in this group?

hint; for an element to be of order 9 , it must solve x^9=e , and not solve x^n=e for any lower value of n

asked 2022-05-19

How do you solve $2(t+3)<3(t+2)$ ?

asked 2022-02-09

How do you simplify the ratio: 21 to 33?