SCENARIO \"I: An appliance manufacturer claims to have developed a compact microwave oven that consumes a mean of no more than 250 W. From previous studies, it is believed that power consumption for microwave ovens is normally distributed with a population standard deviation of 15 W. A consumer group has decided to try to discover if the claim appears true. They take a sample of 20 microwave ovens and find that they consume a mean ot 2573 W. Reterring to Scenarioi, the population of interest is Q) a. the mean power consumption in all such microwave ovens. O b. the power consumption in all such microwave ovens. O c. the power consumption in the 20 microwave ovens. C) d. the mean power consumption in the 20 microwave ovens. Clear my choice Referring to Scenario'l, the parameter of interest is O a. the mean power consumption of the 20 microwave ovens. O b. 2573. O c. the mean power consumption of all such microwave ovens. Q d. 250. Referring to Scenario1, for a test with a level of significance of 0.05, the critical value would be. O a. 2.33 O b. 1.96 O c. 2.58 O d. 1.65 Referring to Scenario1, the value of the test statistic is O a. 2.33 O b. 2.58 O C. 2.18 O d. 1.96 Referring to Scenario1, the p-value of the test is O a. 0.995 O b. 0.153 O c. 1.96 O d. 0.015