1. There is an inverse relationship between Speed and Noise. This evidenced by looking
at the raw data and confirmed by the graphical representation.
2. The noise is much more variant than distance, which has a nearly constant slope.
3. At 400 distance, t
Chapter8
ConfidenceIntervals
Calculatingwithpopulationmean,
known:ztable
Width=
2 z 2
n
Marginoferror:E= z
x
z
( n )
( n )
< < + z
x
( n )
=(1 ( confidence level)
twotail:
=(1 )
2
Confidencelevel:%
ConfidenceCoefficient:Decimal
unknown: ttable
S