Manufacturer Earnings Refer to the data set In Exercise 28, and the boxandwhisker plot you drew that represents the data set.
(a) About 75% of the manufacturers made less than what amount per hour?
(b) What percent of the manufacturers made more than $15.80 per hour?
(c) You randomly select one manufacturer from the sample. What is the likelihood that the manufacturer made less than $15.80 per hour? Write your answer as a percent.
Exercise 28:
Using Technology to Find Quartiles and Draw Graphs In Exercise, use technology to (a) find the data set’s first, second, and third quartiles, and (b) draw a boxandwhisker plot that represents the data set.
Hourly Earnings The hourly earnings (in dollars) of a sample of 25 railroad equipment manufacturers
15.60 
18.75 
14.60 
15.80 
14.35 
13.90 
17.50 
17.55 
13.80 
14.20 
19.05 
15.35 
15.20 
19.45 
15.95 
16.50 
16.30 
15.25 
15.05 
19.10 
15.20 
16.22 
17.75 
18.40 
15.25 
Solution 30E
Step1 of 4:
From the given problem we have a data set and it is given below:
15.6  18.75  14.6  15.8  14.35  13.9  17.5  17.55  13.8 
14.2  19.05  15.35  15.2  19.45  15.95  16.5  16.3  15.25 
15.05  19.1  15.2  16.22  17.75  18.4  15.25 


Here our goal is:
a). We need to find about 75% of the manufacturers made less than what amount per hour.
b). We need to find the percent of the manufacturers made more than $15.80 per hour.
c). Suppose you randomly select one manufacturer from the sample. Then, we need to find the likelihood that the manufacturer made less than $15.80 per hour.
Step2 of 4:
a).
The boxplot of the given data is obtained from MINITAB, following are the steps:
Enter the given data in MINITABGo to graphs
Choose Boxplot(Simple)Input data into graph variable
Then...