Question

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

Answer 1

See Explanation

Step-by-step explanation:

Given

`n = 100`

`\sigma= 4.8`

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:

`SE = (\sigma)/(\sqrt n)`

Substitute values

`SE = (4.8)/(√(100))`

Take the positive square root of 100

`SE = (4.8)/(10)`

`SE = 0.48`