A chemical engineer has been working on developing a new type of candle wax made from coconut oil. The engineer wonders how the amount of time that a candle made of coconut oil wax will burn compared to the time that a candle made of beeswax will burn.

After gathering the appropriate data and ensuring that the necessary conditions have been satisfied, which type of significance test should the engineer conduct?

1. rafael is struggling to lose weight. over the course of one year, he has gained almost 30 pounds. he really wants to lose weight and get healthy. what advice would you offer him? a. he should quit trying to lose weight because it's too hard and causes too much stress. b. he should blame his parents for his weight gain because his parents are also overweight. c. he should be persistent and keep trying because losing weight takes time and hard work. d. he should ignore his weight gain and just realize that he is an overweight person now. 2. what is the best way to find out if the food you are eating is healthy for you? a. read the packaging to see the list of ingredients and calories. b. decide if the food tastes good and if you enjoy eating it. c. determine whether or not the food improves your mood. d. try the food to see if it upsets your stomach or causes a headache. 3. how can making new friends and trying new activities improve your health? a. new friends can keep you up to date on all of the latest fashions. b. new friends can tell you which classes and teachers to avoid. c. new activities will keep you from spending too much time on your school work. d. new activities will you to build confidence and make you feel good. 4. how can understanding your brother's personality improve your relationship with him? a. you can accept his differences and perhaps learn something new from him. b. you can try to change his personality to be more like yours so you will get along better. c. you can pretend to like the same things he does so that you will not disagree. d. you can tell him all of the things that are wrong with his personality and how to fix it.