Francesca is at a casino watching a game involving dice. She determines that one of the dice is loaded, causing it to turn up 3 more often than would be expected by chance. To know for certain if this was true, Francesca would have to conduct a study to determine if her findings have statistical ____.
a. significance
b. power
c. validity
d. generalizability
Question 2
Richard Simmons wants to know whether his original weight-loss system (Simmons I) is as effective as his new weight-loss system (Simmons II). His results indicate that people on Simmons I lose an average of 28.5 pounds in six months and people on Simmons II lose an average of 30.1 pounds in six months. What type of statistics should Richard use to see if the Simmons II system is really better than the Simmons I system?
a. inferential
b. descriptive
c. mean
d. mode
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