Demonstrate an understanding of statistical analysis

Reference no: EM131240980 , Length: word count:1500

There are many sections to stage two of the assignment, it will be easiest if you start with section 5 and 6, Then do section 4 , section 4 needs you to do many things with excel and webpages so detailed instructions for section 4 this are given on page 5 to 15 of this document

Bus 701 statistical modelling assignment course description and task instructions course descriptions

Assessment Type: Statistical Modelling Assignment - analysis and 1500 + 10% word report - individual assessment

Purpose: To allow students to demonstrate an understanding of statistical analysis and the ability summarise and manipulate sample data, make basic statistical inferences and interpret the results in a business context. This assessment contributes to Learning Outcome a, b, and c.

Values and due dates

Stage 1 worth 5% of the final grade, moodle quizzes due week 6
Stage 2 worth 5% of the final grade, moodle quizzes due week 7
Stage 3 worth 10% of the final grade, A report due week 8

Further detail Submission: Report (Word .doc or .docx) with analysis tables etc. as attachments - upload to KOI's Moodle subject homepage Topic: What do the figures mean? Task Details: Students will be presented with a set of numerical data, and a business scenario. From this you will need to present, summarise and manipulate sample data, make basic statistical inferences and interpret the results. The analysis and conclusions drawing form the analysis then needs to be presented in a short report including all relevant analysis either as part of the report or as attachments referred to in appropriate sections of the report. Further detail will be provided during the trimester.

Presentation: The report needs to be short report format - 1500 + 10% word report format - Word .doc or .docx Presentation details will be advised during the trimester.

Instructions for stage 3 , All

Overview: Each student will be given a sample from a large population and each student will analyse their own sample. the data and a short description of the data is given in a separate excel file

https://app.box.com/s/zlzjujmo3cq1jst35jummv8118pc0h0e

Students have to answer Many sections (sections 0, 1,2,3,4,5,6,7,8) all answers must go into a single word file.
Section 0: Cover sheet

You do need a cover sheet with the following

Student number, (this is very important it lets the marker check you have used numbers based on your student

Assignment: Statistical modelling

Section 1: Introduction

Give an introduction to the assignment, part of your answer should paraphrase the following

"A that company makes a snack food has gathered data from its customers, as well general summaries of the data it wants following two Hypotheses to be answered

1) Is the proportion of people that prefer version 1 significantly different to 50%

2) Is the amount people are willing to pay significantly different to $2 "

Note that the word significant has a very specific meaning and it is totally unacceptable to replace the word "significant" with a synonym such as "important".

Section 2 : the problems of getting survey data in the real world

The data set in the assignment is not real world data

Discuss the problems of getting survey data in the real world, also discuss ethics you need to consider when gathering survey data. Also give an example of a real world product and give suitable survey questions.

You do not need to discuss why real world data was not used, every student needs their own sample to prevent copying and comparing different samples helps students understand the main concept in statistics the "sampling distribution of an estimate"
Section 3: Description of the data set

Describe the dataset and describe each of the variables,

For each variable answer the question is it categorical or numerical?

Section 4:Summary of the data set

Use the filter given in the data to find your sample and use excel or suitable webpages such as https://www.calculatorsoup.com/calculators/statistics/descriptivestatistics.php
https://www.shodor.org/interactivate/activities/Histogram/
https://www.wessa.net/rwasp_backtobackhist.wasp

to do the following.

a) For each variable below give a graphical and numerical summaries that describes the variable
(in other words give the appropriate univariate statistics and graphical displays)

i) variable: Income

ii) Variable: How much they would pay?

Also provide give appropriate comments

b) For each pair of variables below give appropriate graphical and numerical summaries that describes the variable (in other words give the appropriate bivariate statistics and graphical displays)

i)The variables: Gender and "do they like the product"
ii)The variables "How much they would pay?"and gender

Also provide appropriate comments

Section 5

5a) Find a 95% confidence interval for the proportion of people that prefer version 2

5b) Just considering the people that like the product , find a 95% confidence interval for the mean of the variable "How much they would pay".

Every student will have a different sample so they will use different summary statistics

To find your sample download the data set https://app.box.com/s/zlzjujmo3cq1jst35jummv8118pc0h0e

Note: The easiest way to do confidence intervals using word is a find a similar question in the week 5 material , cut and paste it into your assignment and change the numbers

Section 6 simple Hypothesis tests

6a) Test the claim proportion that prefer version 2 is different to 50%

6b) Just considering the people that like the product.

Test the claim the mean of the variable "How much they would pay" different to $2

Use the same information you used in section 5a and 5b

The easiest way to do hypothesis testing using word is a similar question in the week 6 material cut and paste it inot your assignment and change the numbers

Section 7 discuss the disadvantages of quantitative methods

What sort of questions are impossible to answer with close ended questions? In which circumstances do you need to use qualitative research?

Section 8: conclusion

Discuss what you learnt after thinking about the previous sections. Make sure you give a discussion of the results from section 6.

https://www.dropbox.com/s/f3zb9zgmrulq6he/assignment%20data%20stage%20and%20Instructions.rar?dl=0

Reference no: EM131240980

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Demonstrate an understanding of statistical analysis : Discuss the problems of getting survey data in the real world, also discuss ethics you need to consider when gathering survey data. Also give an example of a real world product and give suitable survey questions.

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Reviews

len1240980

10/13/2016 2:19:18 AM

1 conclusion in plain English 3 Discuss the disadvantages of quantitative methods 4 Explain why it is useful to summarize data with graphs and summary statistics Also explain why it is useful to find confidence intervals and perform Hypothesis tests (refer to your previous results)

10/13/2016 2:18:46 AM

1 approproiate statistics 1 appropriate graph 1 Brieff comment, compare the groups 1 appropriate statistics 1 approriate graph 1 brief comment , compare the groups 1 approporiate numbers pasted from spread sheet 1 correct formula 3 correct answer 1 approporiate numbers pasted from spread sheet 1 correct formula 3 correct answer 1 Correct null and alternative hypothesis 1 test stat 1 appropriate critical value from table 1 do you reject or not reject H0 1 conclusion in plain English 1 Correct null and alternative hypothesis 2 test stat 1 appropriate critical value from table 1 do you reject or not reject H0

10/13/2016 2:18:28 AM

1 coversheet, Name and student number, subject bus701 assignment:statisical modelling assignment 3 Give a brief introduction to the assignment 1 Discuss the problems of getting survey data in the real world 2 Give an actual product and propose some survey questions about it 1 Give a brief description of the whole data set 2 For each variable state if it is numerical or categorical 1 min, q1, median,q3,max, mean,stdev 1 appropriate graph 1 Breif comment, is it skewed or not skewed 1 min, q1, median,q3,max, mean stdev 1 appropriate graph 1 Breif comment, is it skewed or not skewed

10/13/2016 2:12:12 AM

This is an assignment of 1500 words based on Simple statistic and should be written on results obtain from the data set given in excel sheet and set of instruction need to be followed which are given in Word file and there is a marking rubric which specify the marks for the Individual task. Please go through all the instruction and reply ASAP - Have you understood the requirement of the assignment, first you have to perform the task mention in the excel sheet data set by following the instruction and paste it on word document and you have to give approriate comment + 1500 words on that.

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