CLSSBB practice questions, page 10 of 12, with answer review and explanations.
Question 46
Which statement is NOT correct about the Fitted Line Plot shown here?
The independent variable is the reactant
If the reactant was 6 units, with 95 % confidence we would expect a minimum yield of 100 units
With at least 95% confidence, we can expect less than 10 units of Yield when the reactant is at a value of 1
A reactant value between 2 and 4 units yields around 20 to 40
When the reactant increases, the expected yield would increase
Question 47
When doing Hypothesis Testing on Non-normal data Belts will use a ________________ to compare more than two sample proportions to each other.
Z score Table
Sakami Table
Mean-to-Mode Analysis
Contingency Table
Question 48
It would be more likely than not for a Belt conducting a Regression Analysis to find that the _______________________.
r2 value is smaller than the absolute value of r
Correlation Coefficient equals r2
Coefficient of Determination is less than r2
Correlation Coefficient equals r divided by 2
Question 49
When a Belt properly analyzes the results of an experiment he must examine the Residuals in expectation of finding all of the following except _________.
Some Residuals higher than others
Some Residuals lower than others
All Residuals within 2 Standard Deviations of the Mean
Residuals will represent a Linear Regression
Question 50
Which statement(s) are correct about the Regression shown here? (Note: There are 2 correct answers).
The dependent variable is the outside temperature
The relationship between outside temperature and number of customers per hour is a Linear Regression
The dashed lines indicate with 95% confidence where all of the process data should fall between
The dashed lines indicate with 95% confidence the estimate for the Quadratic Regression Line
The predicted number of customers per hour is close to 5 if the outside temperature is 10 deg C