9.1 by Usic https://padlet.com/usictech/117aiisy87lz7r6n en-us 2021-11-15 14:24:58 UTC 2025-11-15 01:04:47 UTC hello@padlet.com Activity 1 usictech https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400801 2021-11-15 14:24:58 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400801 Extra strategy usictech https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400806 2021-11-15 14:24:58 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400806 Activity 1 usictech https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400808 2021-11-15 14:24:58 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400808 Activity 1 usictech https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400809 2021-11-15 14:24:58 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400809 Activity 1 usictech https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400813 2021-11-15 14:24:58 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400813 Activity 1 usictech https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400814 2021-11-15 14:24:58 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400814 Open the worksheet and add your group's answers usictech https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400816 Group 1 - Research Context 1

Group 2 - Research Context 2

Group 3 - Research Context 3

Group 4 - Research Context 4

Group 5 - Research Context 1]]> 2021-11-15 14:24:58 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400816 Answer all of the questions as a group as quickly as possible usictech https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400818 2021-11-15 14:24:58 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1891400818 Define the picture for your group - how can we define these sampling strategies? usictech https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894020881 2021-11-16 12:58:53 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894020881 Stratified sampling https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894065234 Divide the population into subgroups (called strata)
based on the relevant characteristic (e.g. age,
income, educational level etc..).
From the overall proportions of the population, you calculate how many people should be sampled from each subgroup (e.g. if there are 2000 Management School students and 1000 Economics students then you would have double the number of participants from the Management School than Economics). Then you take a random sample from each subgroup]]> 2021-11-16 13:18:08 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894065234 https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894076554 they are people who want to participate in the research without benefits.
So compare to people who were chosen before the research,
we need a after-chosen strategy to keep it unbiased ，effective，and consistency]]> 2021-11-16 13:22:18 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894076554 https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894077835 Sample survey of randomly selected participants

Collect a group of volunteers with similar conditions, and randomly select them for investigation
In this way, we can get a variety of data and reflect big data with a small part of data]]> 2021-11-16 13:22:46 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894077835 https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894083995 The random sampling method is a survey in which each part of the total population has an equal chance of being selected, and is a sample survey conducted in full accordance with the principle of equal opportunity, known as a "probability".


Advantages: simple, intuitive and the most basic form of organisation in random sampling theory
Disadvantages: generally requires the numbering of overall units, which can be difficult when the overall population contains a large number of individuals.]]> 2021-11-16 13:25:07 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894083995 Answers usictech https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894125457 2021-11-16 13:39:54 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894125457 Answers usictech https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894230050 2021-11-16 14:14:38 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894230050 1、 https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894230199 Men who run in Sheffield and wear a fitbit]]> 2021-11-16 14:14:41 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894230199 1 https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894241172 Sheffield based male runners]]> 2021-11-16 14:18:19 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894241172 2、 https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894241244 survey]]> 2021-11-16 14:18:21 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894241244 https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894244490 sampled]]> 2021-11-16 14:19:20 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894244490 Answers usictech https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894270224 2021-11-16 14:27:29 UTC https://padlet.com/usictech/117aiisy87lz7r6n/wish/1894270224