A company claims that the mean monthly residential electricity consumption in a certain region is more than 880 kiloWatt-hours (kWh). You want to test this claim. You find that a random sample of 60 residential customers has a mean monthly consumption of 920 kWh. Assume the population standard deviation is 129 kWh. At a =0.01, can you support the claim? Complete parts (a) through (e). (a) Identify Ho and H. Choose the correct answer below. O A. Ho: H= 880 (claim) H:#880 O B. Ho: uS 880 Hu> 880 (claim) OC. Ho: H> 920 (claim) O D. Ho: uS920 Hu>920 (claim) H: us 920 O E. Ho: u> 880 (claim) OF. Ho: u=920 H:u#920 (claim) H:us 880

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A company claims that the mean monthly residential electricity consumption in a certain region is more than 880 kiloWatt-hours (kWh). You want to test this claim. You find that a random sample of 60 residential customers has a mean monthly
consumption of 920 kWh. Assume the population standard deviation is 129 kWh. At a =0.01, can you support the claim? Complete parts (a) through (e).
(a) Identify Ho and Ha. Choose the correct answer below.
O A. Hn: = 880 (claim)
H:u#880
O B. Ho: us880
H:u> 880 (claim)
O D. Ho: uS 920
H:p> 920 (claim)
O C. Ho: u> 920 (claim)
H:us 920
O E. Ho: u> 880 (claim)
OF. Ho: u= 920
Hap920 (claim)
H: us 880
Transcribed Image Text:A company claims that the mean monthly residential electricity consumption in a certain region is more than 880 kiloWatt-hours (kWh). You want to test this claim. You find that a random sample of 60 residential customers has a mean monthly consumption of 920 kWh. Assume the population standard deviation is 129 kWh. At a =0.01, can you support the claim? Complete parts (a) through (e). (a) Identify Ho and Ha. Choose the correct answer below. O A. Hn: = 880 (claim) H:u#880 O B. Ho: us880 H:u> 880 (claim) O D. Ho: uS 920 H:p> 920 (claim) O C. Ho: u> 920 (claim) H:us 920 O E. Ho: u> 880 (claim) OF. Ho: u= 920 Hap920 (claim) H: us 880
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