Suppose that the mean time for a certain car to go from 0 to 60 miles...

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Question

Suppose that the mean time for a certain car to go from 0 to 60 miles...

Suppose that the mean time for a certain car to go from 0 to 60 miles per hour was 8.4 seconds. Suppose that you want to test the claim that the average time to accelerate from 0 to 60 miles per hour is less than 8.4 seconds. What would you use for the alternative hypothesis?

	a.	H₁ : μ < 8.4 seconds
	b.	H₁ : μ > 8.4 seconds
	c.	H₁ : μ ≤ 8.4 seconds
	d.	H₁ : μ ≥ 8.4 seconds
	e.	H₁ : μ = 8.4 seconds

math Statistics-And-Probability

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Answer 1

Answer #1

Solution:

claim: the average time to accelerate from 0 to 60 miles per hour is less than 8.4 seconds

This is a left (One) tailed test,

The alternative hypothesis is,

a)

H1: 8.4

Option a is correct.

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Answer 2

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