Section 2: Development of Observations, Questions and Hypotheses. (10pts/item) 1
ID: 145738 • Letter: S
Question
Section 2: Development of Observations, Questions and Hypotheses. (10pts/item) 1. Which of the following observations is more useful for further investigation? Why? Observation 1: Food waste in the dining center has increased. Observation 2: The the dining center has increased. amount of bread and salad bar items discarded by customers in 2. Newspaper articles often refer to a discovery as "scientific" or claim that something has been proved "scientifically". What is meant by this description? Section 3: Data Analysis & Interpretation Refer to lab exercise 2 for help with these questions. 1. Define the term mean (4pts) eine .rie ave rage agrowP Define the term range (4pts) The ranse 2. difference beween the extve 3. What information can be derived from calculation of the standard deviation? (6 pts)Explanation / Answer
Section 2
Q.1 Answer- Observation 1 is more useful for further investigation because it gives us a general view with respect to the waste food. It says food waste in dining center has increased and we can go into the causes and may found wastes other then bread and salad on our observation.
Q.2 Answer- The term "scientifically proven" is more about failing to disprove things or showing that things have been detected or matched within a level of statistical significance after subjecting to various observations and experiments.
Section 3
Q.1 Answer- Mean refers to the average that is used to derive the central tendency of a data. It is determined by taking "sum of observations divided by number of observations".
Q.2 Answer- In a set of data , range may be defined as difference between the largest and the smallest value.
Q.3 Answer- Standard deviation is a measure of dispersion. A small value of standard deviation indicate that data is tightly grouped about the mean while a high value indicates data to be widely spread on either side of mean.
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