Table 2.

Results of the measured force for glass fiber/polyester resin and memory foam.

Memory Foam Density/Thickness kg/m3/mm	Glass Fiber/Polyester Resin + Memory Foam
	80/15	60/20	80/15	60/10	80/15	100/20	100/10	-
No.	1	2	$\sout{3}$	4	5	6	7	8
Force F, N	6874.85	5503.41	$\sout{7286.87}$	8581.79	7494.84	4767.66	8338.5	9908.1
	7204.46	5473.98	$\sout{6863.08}$	8281.60	7578.23	5279.74	8201.16	9638.33
	7332.98	5603.47	$\sout{6869.94}$	8583.75	6788.52	5061.96	7345.73	8946.72
	7524.27	5150.25	$\sout{6710.04}$	8495.46	7269.21	5368.03	7910.78	9653.04
	7425.19	5032.53	$\sout{7539.97}$	8911.40	6633.52	5238.54	8175.65	9962.06
Mean $\overline{x}$, N	7272.35	5352.73	$\sout{7053.98}$	8570.80	7152.86	5143.19	7994.37	9621.65
St. dev. S	251.55	246.88	$\sout{346.06}$	226.72	422.46	237.65	394.26	404.58