Foundations of Statistics in Agriculture
The PIONEER of statistics in 1749 was:
A) John Dewey
B) Gottfried Achenwall
C) Ronald Fisher
D) Galileo Galilei
B) Gottfried Achenwall
The variable that is considered as EFFECT:
A) Independent
B) Dependent
C) Control
D) Random
B) Dependent
The FIRST STEP in agricultural research is:
A) Verification
B) Problem Identification
C) Hypothesis
D) Experimentation
B) Problem Identification
Repeating treatments is called:
A) Replication
B) Randomization
C) Blocking
D) Control
A) Replication
Predicting yield for 100 trees using 5 trees is:
A) Inferential statistics
B) Descriptive statistics
C) Blocking
D) Replication
A) Inferential statistics
Which of the following is qualitative data?
A) Crop yield (tons/hectare)
B) Rainfall (mm)
C) Taste of fruit (sweet/sour)
D) Number of farmers
C) Taste of fruit (sweet/sour)
If two plots are identical EXCEPT fertilizer, the difference is due to:
A) Soil
B) Fertilizer
C) Water
D) Random chance
B) Fertilizer
Brainstorming fertilizer schedules is:
A) Problem Identification
B) Proposing Solutions
C) Verification
D) Replication
B) Proposing Solutions
Assigning fertilizer RANDOMLY across soil types is:
A) Randomization
B) Replication
C) Blocking
D) Control
A) Randomization
A farmer repeats fertilizer trials in 3 plots. This is:
A) Replication
B) Randomization
C) Blocking
D) Control
A) Replication
A researcher uses 5 trees to predict yield for 100 trees. This is:
A) Descriptive statistics
B) Inferential statistics
C) Experimental design
D) Randomization
B) Inferential statistics
A farmer tests organic fertilizer. The stalk thickness is the:
A) Independent variable
B) Dependent variable
C) Control variable
D) Random variable
B) Dependent variable
Which hypothesis assumes no significant difference?
A) Null
B) Alternative
C) Control
D) Random
A) Null
Which principle prevents favoritism in treatment assignment?
A) Randomization
B) Replication
C) Blocking
D) Control
A) Randomization
Farmers using molasses fertilizer and seeing thicker stalks is:
A) Verification
B) Problem Identification
C) Hypothesis
D) Randomization
A) Verification
Why does statistics require expert handling?
A) To avoid wrong conclusions
B) To simplify data
C) To measure averages
D) To collect samples
A) To avoid wrong conclusions
A farmer changes irrigation only, keeping soil constant. Which principle?
A) Randomization
B) Law of Single Variable
C) Replication
D) Blocking
B) Law of Single Variable
Which step ensures evidence replaces assumption?
A) Verification
B) Problem Identification
C) Proposing Solutions
D) Hypothesis
A) Verification
Which principle groups similar environments?
A) Blocking
B) Replication
C) Randomization
D) Control
A) Blocking
Which principle ensures fairness in soil conditions?
A) Blocking
B) Replication
C) Randomization
D) Control
A) Blocking
A farmer misinterprets rainfall data and applies excess fertilizer. This is an example of:
A) Proper estimation
B) Misuse of statistics
C) Inferential statistics
D) Randomization
B) Misuse of statistics
A sugarcane trial shows thicker stalks with molasses. Which variable CAUSE it?
A) Independent
B) Dependent
C) Control
D) Random
A) Independent
Which error declares a difference where none exists? (REJECTS NULL HYPOTHESIS)
A) Type I
B) Type II
C) Null
D) Random
A) Type I
A fertilizer works in SRA station but not in family farms. Why?
A) Proper Interpretation
B) Replication
C) Randomization
D) Blocking
A) Proper Interpretation
Which component reminds us “results only apply to similar conditions”?
A) Proper Interpretation
B) Replication
C) Randomization
D) Blocking
A) Proper Interpretation