Unlike most packaged food products, alcohol beverage container labels are not required to show calorie or nutrient content. an article reported on a pilot study in which each of 57 individuals in a sample was asked to estimate the calorie content of a 12 oz can of beer known to contain 153 calories. the resulting sample mean estimated calorie level was 191 and the sample standard deviation was 86. does this data suggest that the true average estimated calorie content in the population sampled exceeds the actual content? test the appropriate hypotheses at significance level 0.001.