which of these statements are correct?

( ) Me gum hug er alla jafna hgt a n jafnvgi milli frambosgetu og eftirspurnarhj jnustufyrirtkjum. (e. with good intention it is always possible to balance supply and demand in service companies.)

( ) a a alla jafna er ekki hgt a setja jnustu lager hefur engin hrif samstillingu frambos og eftirspurnar. (e. the fact that it is not possible to store service, has no affects in balancing supply and demand.)

( ) Tminn skiptir mestu mli ef a fyrirtki gerir mistk. (e. time is the most important factor if a company make a mistake.)

( ) egar jnusta er annars vegar er eftirspurnin fasti en frambosgetan breytileg. (e. in service the demand is constant, but the supply is variable.)

( ) egar svokallair jnustustalar eru skilgreindir hafa harir stalar meira vgi en mjkir stalar. (e. when defining the so-called service standards, the hard ones are more important than the soft ones.)