(a) The life spans of three randomly selected tires are 35,000 miles, 36,000 miles, and31,000 miles

. Find the z-score that corresponds to each life span

.For the life span of 35,000 miles, z-score is negative 0.890.89.

(Round to the nearest hundredth as needed.)Part 2For the life span of 36,000 miles, z-score is negative 0.440.44.

(Round to the nearest hundredth as needed.)Part 3For the life span of 31,000 miles, z-score is negative 2.672.67.

(Round to the nearest hundredth as needed.)

Part 4.....................According to the z-scores, would the life spans of any of these tires be considered unusual?

No

Yes yes

Your answer is correct.

I was able to do the top part but i cant do the empirical rule part please help

Part 5(b) The life spans of three randomly selected tires are 34,750miles, 39,250 miles, and 37,000 miles.

Using the empirical rule, find the percentile that corresponds to each life span.

The life span 34,750 miles corresponds to a percentile of enter your response here. --------------

The life span 39,250 miles corresponds to a percentile of enter your response here. ----------------

The life span 37,000 miles corresponds to a percentile of enter your response here. --------------------

(Round to the nearest whole number as needed.)