Essay
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?
Correct Answer:
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a. μ red > μ white
b. A one-tail test is approp...View Answer
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Correct Answer:
Verified
b. A one-tail test is approp...
View Answer
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