Table 6.

The perceived effect of sounds on performance in different tasks.

Type of work	Condition
	P1a	N1	N2	N3	N4	P1b	p1	p2
Reading and writing	1.6	2.0	1.8	2.7	2.7	1.6	<0.001	n.s.
Planning	1.4	2.2	1.9	2.9	2.8	1.8	<0.001	n.s.
Phone conversations	1.7	2.2	2.3	3.2	2.8	1.9	<0.001	n.s.
Telemeetings	1.6	2.0	2.0	3.1	2.9	1.7	<0.001	n.s.
Cooperation	1.3	1.8	1.7	2.7	2.6	1.6	<0.001	n.s.
Confidential discussions	1.3	1.6	1.7	2.7	2.3	1.4	<0.001	n.s.

Mean values. Scale: 1 Not at all, 5 Very much. Columns p₁ and p₂ follow the Table 4.