User Account

All Pages

Statistics, Basic Statistics

Assignment Help:
Question 1

A courier company conducted a brainstorming session amongst drivers to ascertain the reasons why it was unable to deliver items to households, always right first time. One major reason suggested by drivers during the session was "customer not at home" when the driver arrived. If there were no specific instructions from the customer, for example "leave on door step" or "leave behind garbage bins", drivers were generally reluctant to leave the item unattended. In such cases, items were returned to the company''s warehouse, the customer contacted and an alternative time arranged. For some customers, it took several attempts before an item was delivered successfully. The result was a poor customer experience and significant rework costs incurred by the company.

The company decided to measure the size of the issue, which it classified as the defect "customer not at home". It examined Monday to Friday data from 3rdAugust 2009 to 1stth October 2009 with an intention of developing a baseline from which to consider improvement. It sampled its Monday to Friday deliveries, each day taking 500 random delivery attempts and recording whether the driver was unable to deliver due to "customer not at home". See the data file. There was no reason to believe that Monday was systematically better or worse than Tuesday or Tuesday was systematically better or worse than Wednesday etc.

(a) Summarise the baseline performance of deliveries with respect to the defect "customer not at home". Do not remove any data.

Group Assignment (2010)

Having established the baseline, the company set about asking the courier drivers for improvement suggestions. It was agreed that a solution called "Double SMS" be trialled.

The customer would be sent an SMS advising on possible delivery time windows soon after the item was received in the company''s warehouse. The customer would then select a preferred delivery window. A few hours before the scheduled delivery, a second SMS would be sent, asking the customer for a confirmation that he/she would be at home during the agreed delivery time window. If the customer advised he/she would not be at home, the customer would be offered an alternative delivery window.

Trials with the "Double SMS" solution began on 2nd October and continued until 11th November when enough data points had been gathered to consider the solution successful and sustainable.

(b) Summarise the performance of the new process. Do not remove any data.

(c) Discuss and demonstrate using a single control chart the extent of the improvement that has occurred from the old process to the new process. Do not remove any data.

(d) Recommend what next steps you would take with the new process. You are not required to undertake these steps.

Related Discussions:- Statistics

Sampling survey ., List all possible simple random samples of size n = 2 th...

List all possible simple random samples of size n = 2 that can be selected from the population {0, 1, 2, 3, 4}. Calculate 2 s for the population and Var y( ) for the sample.

Why do organisations need a structure, Question 1: (a) The grouping of ...

Question 1: (a) The grouping of organisational activities (usually into ‘departments' or larger ‘divisions') will be done in different ways. Outline the criteria which can be u

Normal distribution probabllity, The annual precipitation amounts in a cert...

The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 89 inches, and a standard deviation of 16 inches. What is the probability that

Why are jupiter’s galilean moons geologically active, Why are Jupiter’s Gal...

Why are Jupiter’s Galilean moons geologically active? - Io is the most Volcanically active world in our solar system, Io get the heat from a process that happens on its interior

#title.bivariate frequency distribution , how to make table of bivariate fr...

how to make table of bivariate frequency table

Four characteristics and functions of statistics, highlight four characteri...

highlight four characteristics and four functions of statistics

Management accounting ratio, Management Accounting Ratio A financial rat...

Management Accounting Ratio A financial ratio in management (or accounting ratio) is a relative magnitude of two types of selected numerical values taken from an enterprise''s

#title. .decision tree, Assume that you have a client that is a paper manuf...

Assume that you have a client that is a paper manufacturer and they have expressed concern that the government will pass a new regulation banning the use of chlorine-based technolo

Marginal costing and break-even analysis, Marginal costing and Break-even a...

Marginal costing and Break-even analysis According to C.I.M.A. Manchester, "Marginal Price means the quantity at any given variety of result by which get worse scenario costs ar

Electromagnetic induction, what are the projects elctromagnetic induction?

what are the projects elctromagnetic induction?

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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