A researcher thinks that people who drive red cars drive faster than people who drive white cars. He recorded the speed of a random sample of red and white cars on a highway. The data follow.

a. What is the research hypothesis?
b. Is a one-tail or a two-tail test more appropriate?
c. Calculate t.
d. Is the research hypothesis supported? Explain?

Question

A researcher thinks that people who drive red cars drive faster than people who drive white cars. He recorded the speed of a random sample of red and white cars on a highway. The data follow. 
  
a. What is the research hypothesis? 
b. Is a one-tail or a two-tail test more appropriate? 
c. Calculate t. 
d. Is the research hypothesis supported? Explain?

Quizplus · Accepted Answer

The Answer of A researcher thinks that people who drive red cars drive faster than people who drive white cars. He recorded the speed of a random sample of red and white cars on a highway. The data follow. 
  
a. What is the research hypothesis? 
b. Is a one-tail or a two-tail test more appropriate? 
c. Calculate t. 
d. Is the research hypothesis supported? Explain?

A Researcher Thinks That People Who Drive Red Cars Drive