4. a researcher conducts an experiment comparing two treatment conditions with 20 scores in each treatment condition. a. if an independent-measures design is used, how many subjects are needed for the experiment? b. if a repeated-measures design is used, how many subjects are needed for the experiment? c. if a matched-subjects design is used, how many subjects are needed for the experiment? gravetter, frederick j. statistics for the behavioral sciences (p. 360). cengage learning. kindle edition.

Restrictions on f(x) = 1/x+5 and g(x) = x-2

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

Ithink i know it but i want to be sure so can you me out ?