Statistics

posted by .

I have a question about one of my Stats vocab questions. any help is great. thanks!

Identify the type of observational study as either Cross-sectional or retrospective

(just a reminder, Cross-sectional is data measured at one point in time, retrospective is data collected from the past)

1.) An economist collects data by interviewing people who won the lottery between the years 1995 and 2000
My reasoning: the data is in the past

I am confused though because if you think farther into it, the data is collected at the present (interviewing people who have won)it's just a group of people between certain years. so it could bed cross-sectional. your input would be very helpful. thank you for your time!

Similar Questions

1. maths help

Hi MY question is if a cylinder has a volume of 72cm cubed and a cross-sectional area of 18cm squared. Work out the height of the cylinder Can someone show me how we do it by the steps The volume of a cylinder is given by volume = …
2. phys

Water flows steadily from an open tank into a pipe as shown in the figure. The elevation of the top of the tank is 12.3 m, and the elevation at the pipe is 3.80 m. The initial cross-sectional area of the pipe (at point 2) is 5.60×10−2 …
3. type of study design

Rates of prostate cancer were compared to those exposed to caloric restriction and those that were not exposed to such deprivation. I have a list to select from: Cohort Cross sectional x Case series case control experimental x ecological …
4. physics ---- really dnt get this at all

A total charge of 25 mC passes through a cross-sectional area of a nichrome wire in 10 s. How many electrons pass through the cross-sectional area in 16 s?
5. Physics

Two wires have the same length and the same resistance but are made up of different materials. The resistivities of these materials are 3.97 Ù and 1.97 Ù. Obtain the ratio of the smaller cross-sectional area to the greater cross-sectional …
6. statistics

Select the most appropriate study design for each of the following questions. (Note: All study design options may not be used and each design option can be used more than once. 1. A study is done to examine the association between …