What is the proportion of 2021 back-to-school spending within 1.45 standard deviations of the mean? Answer this question by completing parts i. through iii.

i. Provide the SMALLER zscore corresponding to the above statement.

ii. Provide the LARGER zscore corresponding to the above statement.

iii. Based on your answers in i and ii, what proportion of 2021 back-to-school spending is within 1.45 standard deviations of the mean?