A refrigerator manufacturer claims that the mean life of its refrigerators is greater than 13 years. You are asked to perform a hypothesis test to test this claim. (a) How would you write the null and alternative hypothesis if you represent the manufacturer and want to support the claim? (b) How would you write the null and alternative hypothesis if you represent the competitor and want to reject the claim? Question content area bottom Part 1 (a) H0: ▼ sigmaσ sigma squaredσ2 pp muμ ▼ less than less than or equals≤ not equals≠ greater than or equals≥ greater than> 13 Ha: ▼ sigmaσ pp muμ sigma squaredσ2 ▼ greater than or equals≥ less than less than or equals≤ greater than> not equals≠ 13 Part 2 (b) H0: ▼ sigmaσ pp sigma squaredσ2 muμ ▼ greater than> less than not equals≠ less than or equals≤ greater than or equals≥ 13 Ha: ▼ sigma squaredσ2 muμ sigmaσ pp ▼ less than or equals≤ less than greater than> not equals≠ greater than or equals≥ 13

A refrigerator manufacturer claims that the mean life of its refrigerators is greater than 13 years. You are asked to perform a hypothesis test to test this claim. (a) How would you write the null...

A refrigerator manufacturer claims that the mean life of its

refrigerators

greater

than

years. You are asked to perform a hypothesis test to test this claim.

(a) How would you write the null and alternative hypothesis if you represent the manufacturer and want to support the claim?

(b) How would you write the null and alternative hypothesis if you represent the competitor and want to reject the claim?

(a)	H0: ▼ sigmaσ sigma squaredσ2 pp muμ ▼ less than less than or equals≤ not equals≠ greater than or equals≥ greater than> 13
	Ha: ▼ sigmaσ pp muμ sigma squaredσ2 ▼ greater than or equals≥ less than less than or equals≤ greater than> not equals≠ 13

(b)	H0: ▼ sigmaσ pp sigma squaredσ2 muμ ▼ greater than> less than not equals≠ less than or equals≤ greater than or equals≥ 13
	Ha: ▼ sigma squaredσ2 muμ sigmaσ pp ▼ less than or equals≤ less than greater than> not equals≠ greater than or equals≥ 13

Jun 03, 2022