Please solve all the parts The following chart shows the hourly wages of a sample of certifiecFrequency403020100 54010a. How many welders were studied?15 20 25Hourly wageb. What is the class interval?2010301007525c. About how many welders earn less than $10 per hour?Percentaged. About 75% of the welders make less than what amount? (Round thee. Ten of the welders studied made less than what amount?$f. What percentage of the welders make less than $15 per hour?Prox

Here we are provided the cumulative series of workers based on Hourly wage. The cumulative workers…

Answered: The following chart shows the hourly…

The following chart shows the hourly wages of a sample of certifiec Frequency 40 30 20 10 0 5 40 10 15 20 25 Hourly wage a. How many welders were studied? 30 100 75 50 25 Percentage

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Question

Please solve all the parts

The following chart shows the hourly wages of a sample of certifiec
Frequency
40
30
20
10
0 5
40
10
a. How many welders were studied?
15 20 25
Hourly wage
b. What is the class interval?
20
10
30
100
75
25
c. About how many welders earn less than $10 per hour?
Percentage
d. About 75% of the welders make less than what amount? (Round the
e. Ten of the welders studied made less than what amount?
$
f. What percentage of the welders make less than $15 per hour?
Prox

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