Question: One of the authors collected data from a class to
One of the authors collected data from a class to see whether humans made selections randomly, as a random number generator would. Each of 38 students had to pick an integer from one to five. The data are summarized in the table.
A true random number generator would create roughly equal numbers of all five integers. Do a goodness-of-fit analysis to test the hypothesis that humans are not like random number generators. Use a significance level of 0.05, and assume these data were from a random sample of students. See page 526 for guidance.
Answer to relevant QuestionsWe counted ones, twos, threes, fours, and fives from a few lines of a random number table, and we should expect to get equal numbers of each. (We ignored the sixes, sevens, eights, nines, and zeros.) There were 14 ones, 12 ...Violins Professional musicians listened to five violins being played, without seeing the instruments. One violin was a Stradivarius, and the other four were modern-day violins. When asked to pick the Stradivarius (after ...The data table compares women who viewed television violence with those who did not, in order to study the differences in physical abuse of the spouse (Husemann et al. 2003). Test whether television violence and abusiveness ...A study conducted in Uganda and Kenya looked at heterosexual couples in which one of the partners was HIV-positive and the other was not. The person in each couple who was not HIV-positive was randomly assigned to one of ...A study was done on children, aged 6 months to 18 years, who had nonlethal scorpion stings. Each child was randomly assigned to receive an experimental antivenom or a placebo. "Good" results were no symptoms after four hours ...
Post your question