Given information:

Terrie Lang
2021-12-15
Answered

To calculate: The equivalent rate.

Given information:

$\frac{300\text{}mi}{20\text{}\mathrm{sec}}=\frac{?\text{}mi}{1\text{}min}$

Given information:

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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 2022-02-10

Makayla takes home $4400 per month from her job as a physical therapist. If her only debt obligations are a car loan payment of $530 and a mortgage payment of $760 every month, is she in danger of credit overload?

asked 2021-08-20

To find the time required to read 36 pages.

Penelop penna read 4 pages$=20.5$ minutes

Penelop penna read 4 pages

asked 2021-09-11

Given expression is,

$\frac{\frac{2}{5}}{\frac{3}{10}}=\frac{15}{10\frac{1}{2}}$

We need to determine whether the ratios are equal.

We need to determine whether the ratios are equal.

asked 2022-08-02

What is the best approximation of the cube root of 125?

asked 2022-07-26

how to simplify the ratio $4oz\xf72lb$

asked 2021-08-13

To calculate: The amount of plant food that should be mixed with 1 gal of water to maintain the same concentration.

Given information:

It is recommended that 7.8 mL of Grow. It-Right plant food be mixed with 2L of water for feeding house plants

Given information:

It is recommended that 7.8 mL of Grow. It-Right plant food be mixed with 2L of water for feeding house plants