Question 8 0 f 10 '35 The amount of money a college student spends on text books annually is known to follow a Normal distribution with a mean of $925 and a standard deviation of $45. Given the statement above, answer the following questions. a. Rounding to two decimal places. what is the z-score for $900? 2 = .29 b. Rounding to four decimal places. the probability a randomly chosen student spends less than $900 is 29-5554 c. Rounding to two decimal places, what is the z-score for $1000? 2 = .8554 d. Rounding to four decimal places. the probability a randomly chosen student spends more than $1000 is 31-2961 e. Rounding to the nearest whole dollar, what is the 80th percentile of this distribution? $