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fiasKO [112]
3 years ago
15

A professor of statistics at NCSU refutes the claim that the average student spends 3 hours studying for the midterm exam. Which

hypothesis is used to test the claim?
A. H_0: μ < = 3 vs. H_1: μ > 3
B. H_0: μ = 3 vs. H_1: μ ≠ 3
C. H_0: μ ≠ 3 vs. H_1: μ = 3
D. H_0: μ > = 3 vs. H_1: μ < 3
Mathematics
1 answer:
sladkih [1.3K]3 years ago
6 0

Answer:

D. H_0: μ > = 3 vs. H_1: μ < 3

Step-by-step explanation:

A professor of statistics at NCSU refutes the claim that the average student spends 3 hours studying for the midterm exam.

The claim is that the average student spends 3 hours studying, so the null hypothesis is that the mean is at least 3, that is:

H_0: \mu \geq 3

At the alternative hypothesis, we test if the mean is less than 3, so:

H_1: \mu < 3

This means that the correct answer is given by option D.

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