Assessment Task – General(StudentVersion) National Unit...

Question

Assessment Task – General(StudentVersion)

National Unit Details
Code	MSL925004	Title	Analyse Data and Report Results
Assessment No.	2 of 3	Assessment Type	Test 1(Online Test) Log on to MS Teams(2 hrs)

Assessment Information
Overview		•This test is divided into two parts. •Part A – competency based & graded. A reattempt will be allowed if competency is not achieved.•Part B – graded only.Only one attempt allowed.•Grading will be made on yourfirst attempt. In the event of a total mark below 50%, you may be offered the opportunity to resit(maximum mark awarded will be 50%.)
Decision Making Rules		Every task in Part A be satisfactorily completed to be assessed as competent in the unit.*For graded units, competence must be demonstrated before a mark can be given.
Re-submission (where tasks are not satisfactorily completed)	All questions in Part A must be correct to be deemed competent. One reattempt will be granted which will be open book. Reassessments will take place one week after the date of the test. Resubmissions received after the scheduled unit end datewillnotbe accepted unless approved by the teacher prior to the end date. Note: Assessment tasks submitted for the first time after the unit end date as scheduled in the Unit Outline will not be assessed and the student should re-enrol into the unit.
Conditions		•Online assessment (file upload)Log on to MS Teams during thetest duration (2 hours) with video camerais on.•Bags, backpacks, briefcases, notes, books, coats, pencil cases, etc. are to be placed at thefrontof the assessment room, not on the bench or floor adjacent to you.•You will need ascientific calculator and black or blue pen (Do not use pencil)•Mobile phones may not be used as a calculator. Use of a mobile phone during the test will be deemed a breach of University Regulations.•This assessment is conducted under all relevant Swinburne University and TAFE Regulations, and any breach of these may be subject to disciplinary action.
Submission Details		•This complete paper must be handed in at the end of the exam.
Reasonable Adjustment		•Students may request reasonable adjustment for assessment tasks.•Reasonable adjustment usually involves varying:othe processes for conducting the assessment (eg: allowing additional time, varying the venue)othe evidence gathering techniques (eg: oral rather than written questioning, use of a scribe, modifications to equipment)•However, the evidence collected must allow the student to demonstrate all requirements of the unit.•If you have any other issue that may impact your ability to undertake the assessment, please discuss with your teacher.
Special consideration			Students may apply for Special Consideration where personal circumstances have adversely affected their task result or ability to undertake an assessment. A Special Consideration form can be completedpriorto, but no later than 3 days after, the date of assessment and submitted to the relevant Manager.

PART A – COMPETENCY(22 marks)

Answer all questions in the boxes or spaces provided. Each correct answer is worth1 mark.

Question 1.The Heights of Australian men are normally distributed with µ =176 and populations=8 Without using a z core table, APPROXIMATELY determine answers to the following:
a)Determine the probability an Australian man with have a heightbetween160cmand 176cm.	1mark
b)Determine the probability an Australian man with have a heightmore than200cm	1mark
Question 2.Use a Z table to calculate the following probabilities based of the normal distribution curve:
a)Pr ( 0	1 mark
b)Pr (-1.21.3)	1 mark
Question 3.The lifespan of an AAS machine produced by a certain company has a normal distributionwith µ =15.8 yr ands=1.02 years.
a)Use the appropriate formula to convert x = 14 years into a z score (Round off your answer to 2 decimal places)	1mark
b)Calculate the probability that an AAS machine produced by this lab will lastmore than14 yrs.	1mark
Question 4.Water samples were taken from100different locations and tested forchlorinecontent (in ppm). Results were as follows:=0.5ppm,s= 0.01ppm,
a)Determine the z scoreata 95% confidence interval?	1 mark
b)Calculatethe95% confidence interval for the meanlead contentinwater(Round off to 1sigfig or 3 decimal places) C95%=0.5ppm± __________ppm	1 mark
c)Thisanswer tells us that there is a 95% chance of the true mean for lead content of water is between___________________________ppm and _______________________________ppm	1 mark
Question 5.Caffeine content of energy drink sample was estimated (in mg/L) by spectrometer methodover 36days. The results were as follows: (caffeine content) = 30.2 mg/L,s (caffeine content) = 0.8mg/L
a)Determine the z scoreto determinea 99% confidence interval?	1 mark
b)Calculatethe99% confidence interval for the mean caffeine in the energy drink(Round off to 1 decimal place)	1 mark
c)This answer tells us that there is a 99% chance of the true mean forcaffeinecontent ofan energy drinkis between______________________________mg/Land _______________________________mg/L.	1 mark
Question 6.A certain Science Company sells 1L bottles of concentrated Hydrochloric Acid to destinationsall overAustralia. The production of 1L bottles of HCl follows a normal distribution. Fourbottles of HCl were randomly selectedfrom production and theirthe volumeswerefound to be: 1001ml, 997.0ml, 996.5ml, 1002ml Assume the sample standard deviation (s) =1.1ml.
a)Calculate the sample mean(don’t round off your answer)	1 mark
b)Determine the t scoreata 95% confidence intervalforthis scenario	1 mark

c)Calculate a 95% confidenceinterval.Round off final answers to1 decimal place.	1mark
d)Thisanswer tells us that there is a 95% chance of the true mean forvolume of HCL inis between ___________________________mland___________________________________ml	1 mark
Question 7.The systolic blood pressure of 35 year old males follows a normal distribution with apopulation mean of 120.0 mmHg. A doctor wanted to determine whether the blood pressure of 35 year old males whoworkedin high stress jobs was higher than normal. To test this, a random sample of 9 males working in stressful occupations, had their bloodpressures taken and the results were:µ= 130.3 mm Hg, s = 1.6mm Hg
a)State the null hypothesis. H0:_________________	1 mark
b)State the alternative hypothesis H1:_____________________	1mark
c)Determine the rejection region if the level of significance is 5%.	1mark
d)Calculate the actualtvalue. Round off the answer to 3 decimal places.	1mark
e)Does the calculated value fall inside the Rejection Region(Yes or No)?Should you reject or accept the null hypothesis?	1mark
f)Based on your findings was the systolicblood pressure of 35 year old males who worked in high stress jobs was higher than normal ?	1mark

assess2-test1onlinestudver-l2ysmhfx.docx

Assessment Task – General(StudentVersion) National Unit Details Code MSL925004 Title Analyse Data and Report Results Assessment No. 2 of 3 Assessment Type Test 1(Online Test) Log on to MS Teams(2 hrs)...

Get Answer To This Question

Related Questions & Answers

Submit New Assignment