CHM413
Question: Student t-test, F-test and analysis of variance were the analytical techniques used for the test of _____
Answer: significance
Question: ____is a voltameter that converts the unknown voltage to current which is later amplified and read out.
Answer: pH meter
Question: The field of chemistry that utilizes redox reactions and the electrical properties that accompany it for some analytical determination is refer to as
Answer: Electroanalytical Chemistry
Question: _____operates by connecting a known voltage source to the cell whose voltage is to be measured with a sensitive galvonometer in between,and adjusting the source voltage untill it equals the cell voltage.
Answer: Potentiometer
Question: For a perfect linear relationship, the correlation coefficient, r, equals
Answer: +1 or -1
Question: The range of values within which the population mean is expected to lie, with a certain probability, is called
Answer: confidence limit
Question: Which of the following measures the degree of linear relationship between two variables?
Answer: Precision
Question: Which of the following analysis helps one to understand how the typical value of the dependent variable changes when any one of the independent variables is varied, while the other independent variables are held fixed.
Answer: Regression
Question: In a mineral analysis of some fruit samples, as the concentrations of Na increases, that of K also increases. This is a
Answer: positive correlation
Question: The rejection of suspected observations(outlier)must be based exclusively on ____criterion.
Answer: objective
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