logo Hurry, Grab up to 30% discount on the entire course
Order Now logo

Ask This Question To Be Solved By Our ExpertsGet A+ Grade Solution Guaranteed

expert
Pam SalvasLaw
(5/5)

515 Answers

Hire Me
expert
MAHIMAStatistics
(/5)

861 Answers

Hire Me
expert
Santosh SaxenaComputer science
(5/5)

575 Answers

Hire Me
expert
Pierre BernierrBusiness
(5/5)

899 Answers

Hire Me
SPSS
(5/5)

experiment was performed using 18 men volunteers, 9 of whom were randomly selected to take a pill containing drug X and 9

INSTRUCTIONS TO CANDIDATES
ANSWER ALL QUESTIONS

Statistics Assessment

General Instructions

These questions require you to select and run appropriate statistical tests using SPSS and to write a fully detailed commentary explaining all of your reasoning and rationale. You must include all appropriate information from the SPSS Output file for each question and EMBED the output WITHIN the commentary at the appropriate place. See 'An Introduction to SPSS Editing' document on WebLearn detailing how to do this and two references (all in Statistics Tutorial Sheets folder). The written commentary must:

• be word-processed

• only cover the points specified in the questions

• not exceed 2000 words in total

For each question detail what statistical test(s) were run, showing all relevant output generated and explain why this test(s) is appropriate? Marks will be awarded for (i) selection of correct procedures including those needed to verify test assumptions (ii) correct data entry and execution of tests (iii) overall presentation of the answer so that it contains only relevant material, in a logical order, neatly set out, without repetition.

For the commentary, marks will be awarded for (i) general presentation and use of English (ii) grasp of statistical theory and concepts (iii) understanding of the SPSS Output.

Mark allocation is as follows: Q1 20%; Q2 25%; Q3 25%; Q4 30%.

The work must be submitted online in WebLearn by 3pm on 22nd April 2020. You are reminded about the University’s Regulations on Plagiarism and Academic Misconduct, outlined in the Module Booklet. A sample question with model answer is available on Weblearn.

Q1 It is thought that a new drug X might affect muscle metabolism. An experiment was performed using 18 men volunteers, 9 of whom were randomly selected to take a pill containing drug X and 9 who were randomly chosen to take a pill that contained a placebo. 2 hours later the 18 men underwent arm exercise tests to measure their respiratory exchange ratio (RER) i.e. the ratio of CO2 produced to O2 consumed. The values obtained for the RER is shown below.

Placebo Drug X

105 96

119 99

100 94

97 89

96 96

101 93

94 88

95 105

98 88

What can be deduced by statistical analysis about the effect of drug X on the RER observed in this study?

20 marks

Q2Dataset Q2_Spring20.xls contains the weights in pounds for an equal number of students studying for 5 different degree courses at a London University, obtained by random sampling. Using statistical analysis what can be said about the weight differences, on average for the five different courses?25 marks

Q3Various factors are hypothesised to be associated with the likelihood of receiving surgical treatment in localised, non-small cell lung cancer (NSCLC) patients. Data on 970 patients with primary localised NSCLC were collected from the Nebraska Cancer Registry between 2005 and 2009. Some characteristics of the patients, who either had or did not have surgery, are shown in the Table below. 

 

No surgery (n=279)

Surgery (n=691)

Total (n=970)

Sex

 

 

 

Male

146

329

475

Female

133

362

495

 

 

 

 

Age (years)

 

 

 

0-65

28

220

248

65-75

80

278

358

>75

171

193

364

 

 

 

 

Residency

 

 

 

Rural

146

334

480

Urban

133

357

490

 

 

 

 

Histologic type

 

 

 

Squamous cell carcinoma

94

192

286

Adenocarcinoma

88

363

451

Large cell carcinoma

10

10

20

Other

87

126

213

 

 

 

 

Comorbidity count

 

 

 

No comorbidity

32

170

202

1 comorbidity

104

269

373

>=2 comorbidity

143

252

395

 

 

Using statistical analysis investigate whether there is evidence that the occurrence of surgery is related to the sex of patient, their age, place of residence, histologic type of the carcinoma or comorbidity count of the patient.

Discuss your results and any significant association found. For any significant association explain the nature of the association.25 marks

Q4A study was conducted to investigate whether the length of a baby could be explained by the three explanatory variables:

• Weight of the baby

• Height of the mother

• Height of the father

The file Q4_Spring20.xls details the baby length in inches for 42 babies as well as the baby weight in pounds, the mother’s height in inches and the father’s height in inches.

Using the data contained within this file, determine by statistical analysis which variables have an impact on baby length, and the extent of the relationship.

30 marks

(5/5)
Attachments:

Related Questions

. The fundamental operations of create, read, update, and delete (CRUD) in either Python or Java

CS 340 Milestone One Guidelines and Rubric  Overview: For this assignment, you will implement the fundamental operations of create, read, update,

. Develop a program to emulate a purchase transaction at a retail store. This  program will have two classes, a LineItem class and a Transaction class

Retail Transaction Programming Project  Project Requirements:  Develop a program to emulate a purchase transaction at a retail store. This

. The following program contains five errors. Identify the errors and fix them

7COM1028   Secure Systems Programming   Referral Coursework: Secure

. Accepts the following from a user: Item Name Item Quantity Item Price Allows the user to create a file to store the sales receipt contents

Create a GUI program that:Accepts the following from a user:Item NameItem QuantityItem PriceAllows the user to create a file to store the sales receip

. The final project will encompass developing a web service using a software stack and implementing an industry-standard interface. Regardless of whether you choose to pursue application development goals as a pure developer or as a software engineer

CS 340 Final Project Guidelines and Rubric  Overview The final project will encompass developing a web service using a software stack and impleme