13) ACME Steel Inc. produces metal rods. Quality control believes that the rods produced in 2021 are not the same length as the rods produced in 2022. The mean length of a sample of 60 rods produced in 2021 is x = 8.43 ft with a sample SD of s = 0.9 ft. The mean length of a sample of 120 rods produced in 2022 is x = 7.95 ft with a sample SD of s = 1.2 ft They test their claim at a 1% significance level. Determine: Ho H p-value p = Decision: Reject H OR Do not reject H 0 0 Conclusion:

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13) ACME Steel Inc. produces metal rods. Quality control believes that the rods produced in 2021 are not the same
length as the rods produced in 2022.
The mean length of a sample of 60 rods produced in 2021 is x = 8.43 ft with a sample SD of s = 0.9 ft.
The mean length of a sample of 120 rods produced in 2022 is x = 7.95 ft with a sample SD of s = 1.2 ft
They test their claim at a 1% significance level.
Determine:
Ho
H
p-value
p =
Decision:
Reject H
OR
Do not reject H
0
0
Conclusion:
Transcribed Image Text:13) ACME Steel Inc. produces metal rods. Quality control believes that the rods produced in 2021 are not the same length as the rods produced in 2022. The mean length of a sample of 60 rods produced in 2021 is x = 8.43 ft with a sample SD of s = 0.9 ft. The mean length of a sample of 120 rods produced in 2022 is x = 7.95 ft with a sample SD of s = 1.2 ft They test their claim at a 1% significance level. Determine: Ho H p-value p = Decision: Reject H OR Do not reject H 0 0 Conclusion:
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