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 67 residential customers has a mean monthly consumption of 910 kWh, Assume the population standard deviation is 121 kWh. At a = 0.05, can you support the claim? Complete parts (a) through (e).

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 67 residential customers has a mean monthly consumption of 910 KWh. Assume the population standard deviation is 121 KWh. At a = 0.05, can you support the claim? Complete parts (a) through (e). 6 (a) Identify Ho and Ha Choose the correct answer below A. Ho H= 880 (claim) O B. Ho H > 910 (claim) Ha H # 880 Ha H$ 910 OC. Ho HS 910 OD. Ho H 3 880 (claim) Ha H > 910 (claim) Has HIS 880 OE. Ho HS 880 OF. HO H - 910 Ha H > 880 (claim) Ha H#910 (claim) 3 of 3 (b) Find the critical value(s) and identify the rejection region(s). Select the correct choice below and fill in the answer box within your choice. Use technology (Round to two decimal places as needed.) 0 of 3 O A. The critical value is O B. The critical values are + Identify the rejection region(s). Select the correct choice below. O A. The rejection region is z > 1.64. O B. The rejection regions are z 1.64 0 of 1 Click to select your answer(S). ? arch O hp O F4 F7 4+ FB F10 PPI F11 F12 PRT SC DELETE HOME % 5 9 BACKSPACE R T P F G H K ENTER PAUSE V B N MA 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 67 residential customers has a mean monthly consumption of 910 KWh. Assume the population standard deviation is 121 KWh. At a = 0.05, can you support the claim? Complete parts (a) through (e). O A. The rejection region is z > 1.64. O B. The rejection regions are z 1.64 C. The rejection region is z