Forty 10-month-olds (20 male, 20 female; mean age = 301 days, range =288-314 days) were randomly assigned to either the AI (n=20) or NI conditions (n= 20). Eight additional infants were tested but not included in the final sample because of fussiness (n =2) or a failure to meet the inclusion criterion (n=6), which was reaching for or grasping a single object within 45 s of it being presented.

Question:

16 of the 20 infants chose the victim in the AI condition. Conduct a hypothesis test to examine the research question of interest given below. Make sure to clearly indicate your hypotheses, check the assumption/condition for the test (if appropriate), indicate the value of the test statistic (if appropriate), indicate the value of the p-value.

Research Question -Is there evidence the majority of 10-months old infants choose the victim under the AI condition?