Which survey method (mail, telephone, or personal interview) would you use for the following situations? describe your choice.

Situation 1

Administration of the problemnaire by local restaurant which wishes to find out customers' satisfaction with a recent menu change.

Situation 2

Administration of a problemnaire by a national manufacturer of coffeemakers in order to test consumers' attitudes regarding a new coffeemaker model that has just been released onto the market with a large advertising campaign