researchers hers conducted a study using a sample of 50 ethnic women. the women completed a self report questionnaire on dieting and attitudes toward body shape and change. the researchers found that 5 of the respondents reported at least weekly episodes of binge eating during the pervious 6 months. is this sufficient evidence to conclude that less than 20% of the population of fijian women engage in atl east weekly episodes of binge eating? let alfa=0.05