Test the claim about the population mean μ at the level of significance α. Claim: μ...

Question

Question

Test the claim about the population mean μ at the level of significance α.

Claim: μ ≠ 0; α = 0.05; σ = 2.62
Sample statistics: x = -0.69, n = 60

A. Fail to reject H₀. There is enough evidence at the 5% level of significance to support the claim.

B. Reject H₀. There is enough evidence at the 5% level of significance to reject the claim.

C. Reject H₀. There is enough evidence at the 5% level of significance to support the claim

Answer 1

Answer #1

The null and alternative hypothesis is

H₀ : = 0

H_a : 0

Test statistic = z

= ( - ) / / n

= (-0.69 - 0) / 2.62 / 60

= -2.04

Test statistic = -2.04

P-value = 0.0414

P-value <

Reject the null hypothesis .

C. Reject H₀. There is enough evidence at the 5% level of significance to support the claim

Answer 2

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