SOLUTION: I am doing a reserach project on car and light truck production where I am comparing stats of two auto companies. Is my raw data going to be sample with replacement or sampling wit

Question 303698: I am doing a reserach project on car and light truck production where I am comparing stats of two auto companies. Is my raw data going to be sample with replacement or sampling without replacement?
Should I use the z-test or the t-test for computing statistical results for inferential testing?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Are you testing the number of vehicles where you
might be interested in the population mean,
or are you studying the proportion of vehicles,
where you might be interested in the population
proportion?
---
In general, mean's test make use of the t-distribution
and proportion tests make use of the z-distribution.
-----
Cheers,
Stan H.
RELATED QUESTIONS
Hello, i am doing a project for my school and need to draw 3 rectangles where the area is (answered by Theo)

If I currently have an 87.6% in my Stats class, and my homework is 10% of my grade... my... (answered by Alan3354)

I am not sure how to solve this, and my textbook does not have an example. A man is... (answered by mananth)

I am doing a project for geometry and I was wondering if a rainbow is a hemisphere?... (answered by stanbon)

I am doing this project in math about car depreciation. Our teacher wants us to find the... (answered by stanbon)

Two vehicles a car and a truck leave an intersection at the same time the car heads east... (answered by stanbon,richwmiller)

I am taking a class in Economics. The problem I am trying to work is: Q=10K^0.5 L^0.5 (answered by josmiceli)

Hello, My name is Alex and I am doing a project with my friend on the geometry of ping... (answered by richard1234)

I have a question on a project for algebra 2 I am doing and I'm stuck and don't know what (answered by Alan3354)