In estimating the mean speed of a roadway segment,a pilot sample of 100 vehicles at this location yield a sample standard deviation of 4.8 miles/ hr

Answers

Answer 1

Answer:

See Explanation

Explanation:

Given

[tex]n = 100[/tex]

[tex]\sigma= 4.8[/tex]

Required

The question is incomplete.

Given the sample size and the standard deviation, a likely question could be to calculate the standard error (SE) of the mean

This is calculated as:

[tex]SE = \frac{\sigma}{\sqrt n}[/tex]

Substitute values

[tex]SE = \frac{4.8}{\sqrt{100}}[/tex]

Take the positive square root of 100

[tex]SE = \frac{4.8}{10}[/tex]

[tex]SE = 0.48[/tex]


Related Questions

Pressure sensor rated at 0-500 psi and has an output of 0-10 Volts DC (10 V correspond to
500 psi) .it is connected to PLC analog input module that is 12 Bits if the PLC read the
Analog input as 8B3 HEX,what is the pressure in psi and the resolution in psi for the
System.​

Answers

Answer:

Explanation:

Sorry I'm new and I need points ty

This might count as engineering, I'm not sure as this is IT



An ordered collection of data elements stored and accessed in a program is called what?
Group of answer choices

Variables

List

Locale

Parameters

Answers

Answer:

10.5

Explanation:

Convert to an equation for example P%* X=Y

P is 7.5% X is 140, so the equation Is 7.5 percent * 14= Y

convert 7.5% Into a decimal by removing the percent sign and deviding by 7.5/100= 0.075

Substitute 0.075 for 7.5% in the equation: 7.5%*140=Y becomes 0.075*140= 10.5

Please help ASAP!!

Which of these substances is the most flammable?

A) nitrogen
B) sulfur dioxide
C) butane
D) nitric oxide
E) silica

Answers

Answer:

Butane

Explanation:

Its very simple, this subtance is highly flammable, its a easily liquefied gas that vaporizes at room temperature.

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