Question

For which situations is it appropriate to use a sample? Choose all that apply.
What percentage of pick-up truck drivers want their next vehicle purchase to be another pick-up truck?
Should the speed limit be decreased on the highway connecting two large cities?
How many pedestrians would use a walkway built over a busy road?
How many police cars are equipped with computers?
What is the most popular car color in the teachers’ parking lot?

Answer 1

Any ideas?

Answer 2

Is this a survey?

Answer 3

no its a test for school and it's check all that apply!?

Answer 4

That's nuts

Answer 5

You posted this twice

Answer 6

@misty34 lol ok..

Answer 7

Lol well we.tried

Answer 8

I would say the first 2 because of safety reasons.

Answer 9

The first 1, the speed limit decreasing would decrease the chances of having an accident

Answer 10

The 2nd one, can connect with the 1st one, and so no one gets hurt or hit.

Answer 11

From experience doing statistical research i would say sampling becomes appropriate when you can't conceivably measure something. Sample size actually doesn't even have to be very big to have statistical relevance. For example n=41 (n=samplesize) N=100,000 (N=total population) gives you 80% confidence with a 10% margin of error for whatever you are trying to measure! So i believe it would be appropriate to use 1 and 4 for sampling as the data sets are too large or unobtainable. Question 2 would be answered from real government data such as accidents on this road. Question 3 can be measured by tracking equipment in a specific location. Hope that helps and sorry this is a few weeks late!