STATISTICS Test 2 — Agri Master Mind
Statistical test used to determine the goodness of fit
- Z-test
- F-test
- Chi-square test
- t-test
Which represents median?
- Second quartile
- Fifth decile
- All of these
- 50th percentile
The relationship between AM, GM and HM
- GM>HM> AM
- GM<HM<AM
- AM>GM>HM
- None of these
Which one is not a measure of central tendency?
- Mean
- Median
- Mean Deviation
- Mode
Correlation coefficient will be negative when
- x increase y increase
- x decrease y decrease
- x increase y decrease
- x increase y increase
Which one is not a measure of dispersion?
- Range
- Standard deviation
- Mean
- Coefficient of variance
Correlation coefficient can take values from
- -1 to 0
- 0 to 1
- -1 to 1
- -1 to infinity
Error degree of freedom for 7 treatments laid out in CRD with 4 replications
- 20
- 25
- 21
- 22
Variance is the square of
- Range
- Quartile Deviation
- Standard Deviation
- Mean Deviation
Probability can take values from
- -1 to 0
- -1 to 1
- 0 to 1
- -1 to infinity
Primary purpose of blocking the field experiment is to reduce
- Block error
- Treatment error
- Experimental error
- Replication error
The test between two population variance is done by
- AM
- Z Test
- F test
- t test
Most suitable design for studying the interaction effect
- Split
- CRD
- Factorial RBD
- Split-split
Most suitable design for studying one factor with greater precision
- Strip plot
- Factorial RBD
- Split
- RBD
Test used when fertility gradient varies in two direction
- RBD
- CRD
- LSD
- SPD
Test to study the significant difference between two means
- Z-test
- Chi-square test
- t test
- Wilcoxon test
Minimum error degree of freedom should be
- 10
- 15
- 12
- 20
Local control is not applied in
- SPD
- RBD
- CRD
- LSD
Design most apt for lab experiments
- RBD
- SPD
- CRD
- LSD
If there are 5 varieties and 4 replications in RBD Then error degree of freedom would be
- 8
- 15
- 12
- 16
Which design follows the number of rows= number of columns=number of treatments
- SPD
- RBD
- LSD
- CRD
If 4 sowing dates are laid out in main plot and 5 N levels are in sub plot and they are replicated thrice then what will be the error degree of freedom
- 6
- 20
- 32
- 60
If 4 levels of depth of ploughing is applied to vertical strip, 5 levels of moisture regime is applied to horizontal strip and replicated three times then error degree of freedom would be
- 10
- 8
- 24
- 6
Measure of peakedness of curve is
- Skewness
- Ogive
- Kurtosis
- Histogram
Distribution is said to be symmetrical if the values are uniformly distributed around the
- Mode
- Median
- Mean
- Mean deviation
Chi square test is
- Parametric
- Both of these
- Non-parametric
- None of these
Local control is used for
- Validity of estimate of error
- Validity of treatment effects
- Dimunition of error
- All of these
Poisson distribution deals with
- Continuous variable
- Both of these
- Discrete variable
- None of these
Correlation coefficient is the geometric mean between two
- Standard deviation
- Median
- Regression coefficient
- Mode
Regression coefficient is independent of change of
- Scale
- Both of these
- Origin
- None of these
When there are several factors with different levels to be experimented simultaneously with the same level of precision then which design is most appropriate
- Split
- Strip
- Factorial RBD
- CRD
Correlation coefficient is independent of change of
- Origin
- Scale
- Both
- None of these
For chi square, value of N should be at least
- 20
- 30
- 50
- 40
Chi square is applied for
- Testing of independence of attributes
- Genetic problem and detection of linkages
- All of these
- Testing the expectation of ratio
Range of multiple correlation coefficient lies between
- -1 to 1
- 0 to infinity
- 0 to 1
- -infinity to infinity
Student t test is used when sample size is ….. and population standard deviation is ……
- Large, known
- Large, unknown
- Small, unknown
- Small, known
AM and variance are always equal in
- Binomial
- Normal
- Poission
- All of these
Beta 1 and Beta 2 of normal distribution are
- 0,0
- 3,0
- 0,3
- 3,3
Mean of binomial distribution is
- npq
- P
- np
- None of these
First central moment is always
- 2
- 4
- 0
- 6
When Beta 2 is > 3 then the curve is
- Mesokurtic
- Platykurtic
- Leptokurtic
- None of these
Second central moment about the AM is equal to
- Standard deviation
- Mean deviation
- Variance
- None of these
Coefficient of variation is calculated by
- AM X100/SD
- SD X 100/ GM
- SD X100/ AM
- None of these
Father of Statistics
- Pearson
- DE Movrie
- R A Fisher
- Gauss and Laplace
Rejecting the null hypothesis when it is true
- Power of test
- Type II error
- Type I error
- None of these
Accepting the null hypothesis when it is False
- Power of test
- Type I error
- Type II error
- None of these
Test used when sample size is large >30 and population SD is known
- T test
- F test
- Z test
- None of these
Transformation used when variance is proportional to the square of mean
- Square root
- Arc sine
- Logarithmic
- None of these
Transformation used when data consists of small values and follow a Poisson distribution (which is converted into normal distribution).
- Logarithmic
- Arc sine
- Square root
- None of these
Term regression was given by
- Gosset
- Pearson
- Galton
- Fisher
Regression coefficient can take values from
- -1 to 0
- 0 to 1
- -infinity to infinity
- -1 to 1
Chi Square can take values from
- -1 to 0
- 0 to 1
- 0 to infinity
- -infinity to infinity
Basic principles of experimental design
- Randomization
- Replication
- All of these
- Local Control
Indian Agricultural Statistical Research Institute is located at
- Gurgaon
- Kolkata
- New Delhi
- Ludhiana
The value of sum of deviations from mean
- None of these
- 1
- 0
- -1
Test used for testing the significance of mean difference of paired observations
- Ex post facto
- Wilcoxon
- Paired t test
- Chi Square
The first step in summarizing the data is
- Result
- Analysis
- Classification
- Interpretation
Error degree of freedom for testing the significance of difference of two sample means
- n1-1
- n1-n2+2
- n1+n2-2
- n1+n2-2
Indian Statistical Institute is located at
- Gurgaon
- New Delhi
- Kolkata
- Ludhiana
Student t test was given by
- Fisher
- Galton
- Gosset
- Yates
Rejecting null hypothesis when it is false is
- Type I Error
- Type II Error
- Power of Test
- None of these
Degree of Freedom for 4 by 3 contigency table is
- 12
- 5
- 6
- 11
Transformation used when data follows binomial distribution
- Logarithmic
- Square root
- Arc sine
- None of these
Relationship between mean, median and mode
- Mode= 2 Median- 3 Mean
- Median = 3 Mode- 2 Mean
- Mode= 3 Median- 2 Mean
- None of these
Relationship between AM, GM and HM
- HM=sq root (AM*GM)
- AM=sq root (GM*HM)
- GM=sq root (AM*HM)
- None of these
Most powerful measure of dispersion
- Mean
- Range
- Standard Deviation
- Mean Deviation
In Binomial Distribution
- Mean<Variance
- Mean= Variance
- Mean> Variance
- None of these
Standard error of mean is calculated using
- None of these
Standard error of difference is calculated using
- None of these
ANOVA was developed by
- Gosset
- Galton
- Fisher
- Laplace
Average suitable to calculate the size of agricultural holding
- Mean
- Median
- Mode
- None of these
Simplest measure of dispersion
- Mean Deviation
- Standard Deviation
- Range
- Correlation
If the variate values are same then standard deviation is
- 4
- 16
- 0
- 8
Unitless measure of dispersion
- Standard deviation
- Mean Deviation
- CV
- None of these
Principle of making use of greater homogeneity in groups of experimental units to reduce the experimental error is referred as
- Randomization
- Replication
- Local control
- All of these
Expression of standard error of statistic is applicatble
- SE=
- SE=
- SE=
- None of these
Probability of sure event is
- 0
- Not defined
- 1
- None of these
Probability of impossible event is
- 1
- Not defined
- 0
- None of these
Rank correlation was given by
- Bernouli
- Poisson
- Spearman
- None of these
Variation due to uncontrolled factors is
- Standard error
- Treatment effects
- Experimental error
- None of these
Critical Difference is calculated by
- t* 2SE(d)
- T+ SE(d)
- t* SE(d)
- t/ SE(d)
Parametric test
- Friedman Test
- Chi Square Test
- Student t test
- All of these
During experimentation, we lost some information and we want to get idea about these values, technique used would be
- Field plot technique
- Seed plot techique
- Missing plot technique
- None of these
If data is quantitative in nature then it is called as
- Attribute
- Both of these
- Variable
- None of these
If data is qualitative in nature then it is called as
- Variable
- Both of these
- Attribute
- None of these
Relative Measure of Dispersion
- Mean
- Mean Deviation
- CV
- Standard Deviation
Absolute Measure of Dispersion
- Mean
- CV
- Mean Deviation
- Standard Deviation
If any of the observation is negative then which measure of central tendency is not calculated
- Median
- AM
- GM
- None of these
Coefficient of determination is
- Square root of Correlation Coefficient
- Square of Regression Coefficient
- Square of Correlation Coefficient
- None of these
ANOVA Utilizes
- T test
- Both of these
- F Test
- None of these
Maximum error degree of freedom is in
- RBD
- Split
- CRD
- None of these
If the difference between two treatment means is less than CD Value then they are
- Significant
- Both of these
- Insignificant
- None of these
World Statistics day
- 29 October
- 29 June
- 20 October
- 20 June
National Statistics day
- 29 October
- 20 October
- 29 June
- 20 June
Missing plot technique is given by
- Laplace
- Gause
- Yates
- None of these
Degree of association between two variables is
- Regression
- Skewness
- Correlation
- Kurtosis
Functional relationship between dependent and independent variable is called as
- Correlation
- Skewness
- Regression
- Kurtosis
In normal distribution, all odd ordered moments are
- Undefined
- 1
- 0
- None of these
Hypothesis of no difference is
- Alternate hypothesis
- Secondary Hypothesis
- Null Hypothesis
- None of these
Partitioning of total variation into several component variations is called as
- Chi Square
- Missing plot
- ANOVA
- None of these