FUNNY STATS PROBLEM......omg i love some of these

[4runnercrazy 10+ year member]

"12.13 DRUNKEN CYCLISTS

in the US approx 900 people die in bicycle accudents each year. One studt examined the records of 1711 bicyclists ages 15 or oler who were fatally injured in bicycle accidents between 1987 and 1991 and were tested for alcohol. of these 542 tested positive for alcohol (blood > .01%)"

haha wow, they just have such random stuff:naughty:

Click to read more...

 

[faulkton 5,000+ posts]

 

[AllStar1500bd 5,000+ posts]

The answer is snowball //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif
//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[faulkton 5,000+ posts]

//content.invisioncic.com/y282845/emoticons/word.gif.64b12e39f936af3b4fff38a1c0bd0244.gif

 

[Nukedsodapop 5,000+ posts]

The answer is snowball //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif
//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

I was thinking stratified... Isnt that where we pick a sample that picks another SRS?

I dont remember

 

[faulkton 5,000+ posts]

No its snowball.

"To choose a stratified random sample, divide the population into strata, groups of individuals that are similar in some way that is important to the response. Then choose a separate SRS from each stratum and combine these SRSs to form the full sample."

"Snowball sampling relies on referrals from initial subjects to generate additional subjects. While this technique can dramatically lower search costs, it comes at the expense of introducing bias because the technique itself reduces the likelihood that the sample will represent a good cross section from the population."

 

[bdawson72 5,000+ posts]

who said that there wasn't intelligence in ca.com

 

[Nukedsodapop 5,000+ posts]

Good spot, I got confused about the question, I thought she picked two groups. It is snow ball

 

[faulkton 5,000+ posts]

3. Let's suppose that Jennifer refines her sampling approach by interviewing different types of prostitutes in proportion to their numbers in the population. For example, if she was able to determine that 15% of the population was comprised of prostitutes above the age of 50, then she would make sure that 15% of her sample was ahove the age of 50.

??

(im trying to trickz0rz you Nuked, so think hard)

 

[Nukedsodapop 5,000+ posts]

Wouldn't that be a biased sample?

And what am I looking to answer here? Haha

 

[faulkton 5,000+ posts]

lol sample type.

it would be quota sampling because her sample is selected with the snowball method (non-probability), and it would be stratified if it was a random sample (probability).

or something.

 

[Nukedsodapop 5,000+ posts]

Ah i see.

I think I have the Book that the OP's question was in, or at least, that question was in my book haha

 

[IamDeMan 5,000+ posts]

who said that there wasn't intelligence in ca.com

No one ever accused CA.com of not having intelligence. We just get labeled for flagrant immaturity //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[Railrocker 10+ year member]

You're all a bunch of nerds! //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[faulkton 5,000+ posts]

social research methods ftmfw!!2!!@z0mg!@1!