A candy company taste tested two chocolate bars, one with almonds and one without almonds. A panel of testers rated the bars on a scale of 0 to 5, with 5 indicating the highest taste rating. If the bar had almonds, the rating was assigned a code of 1; if the bar did not have almonds, the rating was assigned a code of 0. Assume the population standard deviations are equal. At the .05 significance level, do the ratings show a difference between chocolate bars with or withoutalmonds?