Hi I need help on what is the answer for these three problems. Below are the questions and a sample on how to answer it. Other concerns we be in the comment section. I hope that you can help me and surely I will give you full positive feedback

Questions

No SIM 8:44 PM ( o a 50% X Example #2: Meralco has listed a variety of home appliances each with annual total electricity consumption in kilowatt-hours. For a medium-sized refrigerator, the annual electricity consumption is said to be an average of 46 kilowatt-hours. A random sample of 12 homes included in the study showed that medium-sized refrigerators consume electricity at an average of 42 kilowatt- hours per year with a standard deviation of 11.9 kilowatt-hours. At a significance level of 0.05 and assuming that the population is normal, does this sample show that medium-sized refrigerators consume, on average, less than 46 kilowatt-hours per year? 0:57:48 -0:26:13 15 151. A researcher reports that the average salary of college clean is more than Php 63,000. A sample of 35 college deans has a mean salary of Php 65,700. At o.= 0.01 , test the claim that the college deans earn more than Php 63,000 a month. The standard deviation of the population is Php5250. (20 pts.) 2. It is claimed that the average weight of a bag of biscuits is 250 grams with a standard deviation of 20.5 grams. Would you agree to this claim if a random sample of 50 bags of biscuits showed an average weight of 240 grams, using a 0.05 level of signicance?(20pts.) Solve the given problem & show your complete solution. (20 pts) A researcher claims that 20-year-old women on a special diet will have an average weight of 110 lbs. A sample of 15 women has an average weight of 112.5 lbs. and a standard deviation of 5 pounds. At (F 0.01, can the claim he rejected? No SIM 8:44 PM ( o a 50% X Solution: 1. Null & alternative hypothesis: Ho: p = 46 versus H,: p critical region, do not reject the Ho 5. Decision & conclusion: Since to -1.16 > -1.796, do not reject the Ho- Therefore conclude that the average kilowatt-hours consumed annually by medium-sized refrigerators is not significantly less than 46. 0:58:03 -0:25:58 15 15