Can someone please double check my answers (My answers are in Capital)
1. If you produce a million products a day and you want to test ten of them to determine if they are up to standard, which ones will you choose?
a. The second ten
B. TEN RANDOM UNITS
c. The last ten
d. The first ten
2. What is the first step in solving any type of research problem?
A. COLLECTING DATA
b. Analyzing data
c. Plotting trend lines
d. Plotting graphs
3. What type of variable can inappropriately affect extrapolate data?
a. Independent variable
b. Lurking variable
c. Obvious variable
d. Dependent variable
(I'm not sure about this one
4. When taking a power function and transforming it into a linear function, you get y=ax^b and is equivalent to log y=(log a + b + x)
FALSE
5. Exponential data follows the equation y = ab^x
TRUE
6. One type of data set that is non-linear in nature is the exponential function
TRUE
Thanks
-MC
All good to me.
For number 3, I am not sure if I understand the context of the question.
I interpret it to mean what variable can adversely affect the accuracy of extrapolated data, in which case I choose independent variable. If an independent variable is chosen out of the applicable range, then the result will be doubtful.
1. To choose ten products to test, you can use the method of RANDOM SAMPLING, which involves selecting items in a way that every product has an equal chance of being chosen. Therefore, the correct answer is B. TEN RANDOM UNITS. This ensures that you get a representative sample from the entire population of products.
2. The first step in solving any research problem is indeed COLLECTING DATA. This involves gathering relevant information, observations, or measurements that are required to address the research question or problem. So, your answer A is correct.
3. Inappropriately affecting extrapolated data refers to a variable that is not considered or controlled properly during data analysis. This variable is known as a lurking variable, which is option B. Therefore, your answer is correct.
4. The statement you provided is FALSE. When transforming a power function into a linear function, you should take the logarithm of both sides to simplify the equation. In the case of y = ax^b, the equivalent logarithmic form is log y = log a + b log x. This is different from log y = log a + b + x as you mentioned. So, your answer is incorrect.
5. Exponential data does indeed follow the equation y = ab^x. This equation represents exponential growth or decay where b is the base and a determines the initial value or magnitude. So, your answer is TRUE.
6. Yes, one type of data set that is non-linear in nature is the exponential function. Exponential functions have a constant ratio between the variable and its rate of change. As a result, the graph of an exponential function forms a curve that does not follow a straight line. Therefore, your answer is TRUE.