The Student Room Group

Stats help

a) Explain what is meant by the word ‘population’.

Jo needs to conduct a survey to investigate the type of kitchen cleaner people prefer. She wants a random sample of people who use kitchen cleaners. She decides to stand in a busy high street on a Saturday afternoon and attempt to get shoppers to answer her questions

b) State the sampling technique Jo has used.

Having been unsuccessful in obtaining enough data from her previous attempt, Jo decides to look at the electoral register for a town and selects a sample of 50 households to contact. She decides to select every 10th name on the electoral register to add to her sample.

c)State the sampling technique Jo has used.

d)Give two reasons why Jo may again be unsuccessful getting the data required using this sampling technique.

e)Suggest an alternative method for Jo to use and explain your reasons
Original post by DankoMan
a) Explain what is meant by the word ‘population’.

Jo needs to conduct a survey to investigate the type of kitchen cleaner people prefer. She wants a random sample of people who use kitchen cleaners. She decides to stand in a busy high street on a Saturday afternoon and attempt to get shoppers to answer her questions

b) State the sampling technique Jo has used.

Having been unsuccessful in obtaining enough data from her previous attempt, Jo decides to look at the electoral register for a town and selects a sample of 50 households to contact. She decides to select every 10th name on the electoral register to add to her sample.

c)State the sampling technique Jo has used.

d)Give two reasons why Jo may again be unsuccessful getting the data required using this sampling technique.

e)Suggest an alternative method for Jo to use and explain your reasons


What are you needing help with?
Reply 2
Original post by Kevin De Bruyne
What are you needing help with?


Parts D and E please
Original post by DankoMan
Parts D and E please

D.) It is only one area, not a range of locations so could be bias. Also, It is a small collection of people so is not reliable. E.) Use an online survey people can access around the world. I dont know if this is 100% correct, but use it as a bit of help if you want. :smile:
Original post by DankoMan
a) Explain what is meant by the word ‘population’.

Jo needs to conduct a survey to investigate the type of kitchen cleaner people prefer. She wants a random sample of people who use kitchen cleaners. She decides to stand in a busy high street on a Saturday afternoon and attempt to get shoppers to answer her questions

b) State the sampling technique Jo has used.

Having been unsuccessful in obtaining enough data from her previous attempt, Jo decides to look at the electoral register for a town and selects a sample of 50 households to contact. She decides to select every 10th name on the electoral register to add to her sample.

c)State the sampling technique Jo has used.

d)Give two reasons why Jo may again be unsuccessful getting the data required using this sampling technique.

e)Suggest an alternative method for Jo to use and explain your reasons


Tricky to be honest, I'd say for d) that the 10th person is hardly guaranteed to use or know anything about cleaners so the system could easily go wrong

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