Construct a histogram and a frequency polygon

Assignment Help Basic Statistics
Reference no: EM13946446

One of the major measures of the quality of service provided by an organization is the speed with which the organization responds to customer complaints. A large family-held department store selling furniture and flooring, including carpet, had undergone a major expansion in the past several years. In particular, the flooring department had expanded from 2 installation crews to an installation supervisor, a measurer, and 15 installation crews. A business objective of the company was to reduce the time between when the complaint is received and when it is resolved. During a recent year, the company received 50 complaints concerning carpet installation. The data from the 50 complaints, represent the number of days between the receipt of the complaint and the resolution of the complaint are:

77 30 14 22 129 113 113 32 64 38
57 8 38 140 34 30 155 5 126 84
97 34 29 8 15 7 168 35 32 31
32 29 28 4 17 16 16 13 8 30
7 55 33 25 39 29 23 26 36 71

a. Construct a frequency distribution and a percentage distribution table.

b. Construct a histogram and a frequency polygon.

c. Construct a percentage cumulative frequency chart (ogive). By using your ogive, estimate the percentage of complaints below 50 days.

d. On the basis of the results of (a) through (c), if you had to tell the president of the company how long a customer should expect to wait to have a complaint resolved, what would you say? Explain.

Reference no: EM13946446

Questions Cloud

Concentric tube heat exchanger : A counterflow, concentric tube heat exchanger is used to cool the lubricating oil for a large industrial gas turbine engine.
Design a system for the organization : explain the main systems in place, discuss the integration, and explain how the data collected by these systems helps the organization make decisions and carry out the strategic plan.
Alstom replaces legacy systems with enterprise resource : Alstom replaces legacy systems with enterprise resource planning system. Alstom provides systems for supporting energy and transport. This project was to support the UK gas turbine part of Alstom's business.
Explain the potential effects : Explain and evaluate two mandated or proposed policies from the Centers for Medicare and Medicaid (C.M.S.) or any other branch of the U.S. Department of Health and Human Services, Describe the policies and explain the potential effects. Is the effe..
Construct a histogram and a frequency polygon : On the basis of the results of (a) through (c), if you had to tell the president of the company how long a customer should expect to wait to have a complaint resolved, what would you say? Explain.
Temperatures of the boiling and condensing sections : Determine the heating rate delivered by the 10 thermosyphons when boiling occurs at 25% of the CHF. What are the mean temperatures of the boiling and condensing sections?
Change the success of the business : you need to find a business such as your employer, a company you support through your personal consumer buying behavior, or a business in your city that is successful and explain how each of the Four P's of marketing mix work together in order to ..
What happens to the power : The linear circuit in the box consists of dependent sources and resistors only. If the value of the connected voltage source,VS, is increased by a factor of 4, what happens to the power, PL, dissipated in RL?
What is the value of the sample correlation coefficient : A linear regression model has a slope of â?"2.5 and an intercept of 10. The sample coefficient of determination is 0.50. What is the value of the sample correlation coefficient?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Define another random variable y to be the maximum value

a pair of fair six-sided dice are tossed independently of each other.a list the sample space of this experiment.b

  Find probability that person will contain zero errors

if 30 claims are selected, find the probability that 15 will contain 0 errors, 8 will contain 1 error, 5 will contain two errors and 2 will contain 3 errors.

  Is the correlation between lot-r total scores and

is the correlation between lot-r total scores and avoidance-distraction coping style statistically significant? is this

  Standard deviation of the systolic blood pressure

A medical doctor wishes to test the claim that the standard deviation of the systolic blood pressure of deep sea divers is less than 450. To do so, she selected a random sample of 20 divers and found s = 432.

  Find nonconforming parts are produced during one-hour period

What is the probability that exactly 5 nonconforming parts are produced during a 1-hour period? What is the probability that at least 5 nonconforming parts are produced during a 1-hour period?

  A university dean wishes to estimate the average number of

a university dean wishes to estimate the average number of hours that freshmen study each week. the standard deviation

  Determine someone with same birtheday as yours

Determine the average number of people you should ask in order to determine someone with same birtheday as yours.

  Compute a 95 ci for the true average porosity of a certain

assume that the helium porosity in percentage of coal samples taken from any particular seam is normally distributed

  Cumulative percentage distribution for average airfares

Construct a frequency distribution, percentage distribution, and cumulative percentage distribution for average airfares.

  A country is considering raising the speed limit on a road

a country is considering raising the speed limit on a road because they claim that the mean speed of vehicles is

  How many expect to have cholesterol levels greater

Levels above 200 warrant attention. If 95 teenage boys are examined. How many would you expect to have cholesterol levels greater than 225.

  Starting salaries of 70 college graduates who have taken a

starting salaries of 70 college graduates who have taken a statistic course have a mean of 42823 and a standard

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd