D Question 15 3 pts If Sam's percentile rank is 30%, what did he make in the test if standard deviation is 5? Hint: Find his z score based on the table first, then use the formula: xi =mean+z(standard deviation) to get xi which is his test score. Note: round your final answer with a whole number( no decimals). For example 80. 4 should be replaced by 80, 80.5 should be replaced by 81