A standardizedexam's scores are normally distributed. In a recentyear, the mean test score was 1521 and the standard deviation was 314. The test scores of four students selected at random are 1930, 1270, 2210, and 1410. Find thez-scores that correspond to each value and determine whether any of the values are unusual.

Thez-score for 1930 is

nothing

.

(Round to two decimal places asneeded.)

Thez-score for 1270 is

nothing

.

(Round to two decimal places asneeded.)

Thez-score for 2210 is

nothing

.

(Round to two decimal places asneeded.)

Thez-score for 1410 is

nothing

.

(Round to two decimal places asneeded.)

Whichvalues, ifany, areunusual? Select the correct choice belowand, ifnecessary, fill in the answer box within your choice.

A.

The unusualvalue(s) is/are

nothing

.

(Use a comma to separate answers asneeded.)

B.

None of the values are unusual.