TABLE I.

Linear Regression Analysis of Pressure vs. Frequency and Amplitude Squared for the Physical Model.

Trial	Tube Diameter (mm)	Length (cm)	Hole Location on Tube*	Slope (cmH2O s2/m2)	X-Intercept (cmH2O)	Standard Error	R Value
1	1.6	14.5–16	Midpoint	84.2	−0.27	2.32	0.984
2	1.6	14.7	Midpoint	92.9	0.24	1.72	0.998
3	1.6	19	Midpoint	93.6	0.71	1.55	0.999
4	1.6	23	Midpoint	84.8	−0.45	1.43	0.993
5	1.6	15.9	Midpoint	79.9	0.83	2.20	0.989
6	1.6	15.9	One-third point	79.8	0.68	2.43	0.976
7	1.6	15.9	One-sixth point	107.6	−0.06	5.35	0.976
8	3.2	21.8	Midpoint	96.8	0.30	3.50	0.991
All data				89.4	0.00 (set)	0.92	0.983
Theoretical average†				100.75
Theoretical peak‡				201.5

^*Relative to end connected to water container;

^†Sine = 0.5 in equation three;

^‡Sine = 1 in equation three.