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4 4 points The average cost per household of owning a brand new car is P5,500. Suppose that we randomly selected 45 households, determine the probability that the sample mean for these 45 households is between P5,250 and P6,000. Assume that the variable is normally distributed and the standard deviation is P1,550. SD of the sample mean (input 4 decimal places)= type your answer. z-scores [input 2 decimal places) type your answer.. type your answer.. Final answer/ Probability (input 2 decimal places type your