File Edit View Insert Format Tools Extensions Help A 100% * Normal text Trebu... 11 + B I U A 5 Question 1: Use the random number table at https:/ /goo.gl/Y7EUPx for this part of the assessment. 1. A club contains 30 students and 10 faculty members. The students are: Abel Fisher Huber Moran Reinmann Carson Golomb Jimeniz Moskowitz Santos Chen Griswold Jone Neyman Shaw David Hein Kiefer O'Brien Thompson Deming Hernandez Klotz Pearl Utz Elashoff Holland Liu Potter Vlasic and the faculty members are: Andrews Fernandez Kim Moore Rabinozitz Besicovitch Gupta Lightman Phillips Yang The club can send four students and 2 faculty members to a convention and decides to choose those who will go by random selection. a. What is the name of the sampling process that will randomly select four students and two faculty members? Explain your reasoning for the sampling type. Answer: b. Use the Random Number Table beginning at line 30 to choose a sample of 4 students, and begin at line 35 to select the 2 faculty members. Remember to follow the steps for choosing a SRS. Answer: JUN 22 atv MacBook esc 20 888 F1 F2 F 3 F 4 F5 F6 @ # % 2 3 4 5 6 Q W E R T A S D F= ol et \\ 4 5 6 Question 2: In a population it is estimated that 20% have a desired trait of interest for the researcher. The researcher wants to know how many people on average he has to draw from a population to get 2 people with the trait. Use rows 20-24 of the Random Number Table to carry out the simulation. Explain clearly how you set up the problem and report your findings. Answer: Question 3: A.large greenhggse has developed a new plant. They are interested in how the plant grows under dlffe.rent cpuldltlons. Your task is to design an experiment to test the plant growth taking into consideration 2 braqu of fertilizer (EasyGro and SuperGro), 3 levels of soil acidity (High, Moderate, and Low), and location (Indoors or Outdoors). There are 120 plants available for the experiment. a. What are the factors? What are the levels of these factors? Answer: b. What is the response variable? \" Answer: | Question 3: A large greenhouse has developed a new plant. They are interested in how the plant grows under different conditions. Your task is to design an experiment to test the plant growth taking into consideration 2 brands of fertilizer (EasyGro and SuperGro), 3 levels of soil acidity (High, Moderate, and Low), and location (Indoors or Outdoors). There are 120 plants available for the experiment. a. What are the factors? What are the levels of these factors? Answer: b. What is the response variable? Answer: 1 c. Create an exper]'mental desigin' including a sketch of ydL?deign. Answer: 3 Question 4: Is Vitamin C helpful in preventing the common cold? We wish to conduct an experiment to examine if 500 mg or 1000 mg of Vitamin C per day can reduce the incidence of colds. Suppose that we have 150 subjects available for the study. a. Describe how you would conduct the experiment. Question 4: Is Vitamin C helpful in preventing the common cold? We wish to conduct an experiment to examine if 500 mg or 1000 mg of Vitamin C per day can reduce the incidence of colds. Suppose that we have 150 subjects available for the study. a. Describe how you would conduct the experiment. Answer: b. Discuss the general roles of the three requirements of experimental design with particular reference to your design in (a). Answer: c. What are placebos? Answer: | d. What is a double-blind study? c. What are placebos? Answer: | | | d. What is a double-blind study? Answer: e. Why are placebos and double-blind studies important in experimental design? Answer: f. Suppose that it is thought that physically fitvbeople catch cold less easily. How would this influence your design in (a)