N

Mean

Std. Deviation

Std.

Error

95% Confidence Interval for Mean

Lower Bound

Upper Bound

Individual preference

37

3.486

0.617

0.101

3.281

3.692

Relevant customers

43

3.775

0.662

0.101

3.572

3.979

No recommended information sources

28

3.274

0.315

0.060

3.152

3.396

Total

108

3.509

0.351

0.034

3.442

3.576