The hypothesis of committing type I error is known as:
A) Test of significance
B) Level of significance
C) Composite hypothesis
D) None of the above
For comparison of two means from independent samples, which test is applicable?
A) F test
B) T-test
C) Z-test
D) Chi square test
The coefficient of variation can be calculated by using the formula:
A) Standard deviation / geometric mean x 100
B) Arithmetic mean / Standard deviation x 100
C) Square root of Standard deviation / arithmetic mean x 100
D) Standard deviation / arithmetic mean x 100
Arithmetic mean and variance are always equal in:
A) Binomial
B) Poisson distribution
C) Normal distribution
D) None of the above
Branches of statistics include:
A) Applied statistics
B) Mathematical statistics
C) Industry statistics
D) Both A and B
Procedures of descriptive statistics and control charts which are used to improve the process are classified as:
A) Statistical tools
B) Parallel tools
C) Serial tools
D) Behavioral tools
Sample statistics are denoted by:
A) Upper case Greek letter
B) Associated roman alphabets
C) Roman letters
D) Lower case Greek letter
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