Question

One year Ron had the lowest ERA​ (earned-run average, mean number of runs yielded per nine innings​ pitched) of any male pitcher at his​ school, with an ERA of 2.74. ​Also, Rita had the lowest ERA of any female pitcher at the school with an ERA of 3.21. For the​ males, the mean ERA was 4.765 and the standard deviation was 0.675. For the​ females, the mean ERA was 3.814 and the standard deviation was 0.594. Find their respective​ z-scores. Which player had the better year relative to their​ peers, Ron or Rita​? ​(Note: In​ general, the lower the​ ERA, the better the​ pitcher.)

Ron had an ERA with a​ z-score of

Rita had an ERA with a​ z-score of

​(Round to two decimal places as​ needed.)

2, The accompanying data represent the miles per gallon of a random sample of cars with a​ three-cylinder, 1.0 liter engine.

32.632.6	35.835.8	37.937.9	38.738.7	40.140.1	42.442.4
34.034.0	36.236.2	38.138.1	39.139.1	40.740.7	42.842.8
34.634.6	37.437.4	38.338.3	39.339.3	41.541.5	43.543.5
35.635.6	37.737.7	38.538.5	39.539.5	41.741.7	49.149.1

​(a)	Compute the​ z-score corresponding to the individual who obtained 42.4 miles per gallon. Interpret this result.
​(b)	Determine the quartiles.
​(c)	Compute and interpret the interquartile​ range, IQR.
​(d)	Determine the lower and upper fences. Are there any​ outliers?

42.4 miles per gallon. Interpret this result.​(a) Compute the​ z-score corresponding to the individual who obtained

The​ z-score corresponding to the individual is and indicates that the data value is standard​ deviation(s)

​(Type integers or decimals rounded to two decimal places as​ needed.)

Answer 1