A number decreased by 72 would be written as ? B - 72 ? ?

Marco is working on promoting his company's Glazer brand of electronic razors

Preliminary surveys have revealed that even though a sizable portion of the target market has developed a liking for the product due to innovative advertising, few customers would actually consider replacing their current razors with Glazers. How can Marco modify the communications program to get customers to favor Glazers over other brands?

Which of the following is NOT one of the three types of preexperimental designs?

A) the one-shot case study B) the one-group pretest-posttest design C) the random group D) the static group E) C and D both