St170 Introductory Statistics Assignment

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Stat170 - Introductory Statistics Semester 1, 2014 Assignment 2 Due Wednesday 28th May 5.00pm via the iLearn link only Submit via the Assignment 2 link in the ASSESSMENTS area of iLearn. Instructions: 1) The answers to all questions are to be word processed. You can either type formulae into your solution or you can use the equation editor in Word or you may include hand-written equations and diagrams by photographing them so that you have the image saved as a picture file and then pasting (inserting) the image/s into your solution. 2) Your assignment should be uploaded as a Word (.doc or .docx) or PDF file (created from a Word processed document) ONLY. Other formats, including a PDF created from an image, will…show more content…
Penalties apply as follows: Submitted on Wednesday after 5pm: Deduct 5 marks Submitted on Thursday: Deduct 10 marks Submitted on Friday: Deduct 20 marks No assignments submitted after Friday will be accepted. Q1 | Q2 | Q3 | Total | | | | | 7 | 14 | 14 | 35 | Question 1 (7 marks) ------------------------------------------------- Research Question: ------------------------------------------------- Is there a difference between the total length of a Gouldian Finch and its wingspan? The Gouldian Finch is a small colourful Australian bird currently believed to be endangered due to habitat loss and extreme weather conditions. An amateur ornithologist believes that the Gouldian Finch has a wingspan which is equal, on average, to its length. The output above summarises the data that the ornithologist collected from a sample of 136 Gouldian Finches. Use an appropriate hypothesis test to determine whether the Gouldian Finches included in this study confirm this claim? Descriptive Statistics: length, wingspan, difference Variable N Mean StDev length 136 159.87 3.99 wingspan 136 244.61 5.69 difference 136 84.738

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