ELEMENTS OF STATISTICS, SET 11

ELEMENTS OF STATISTICS

Q.1

Equality of two population variances can be tested by

Ans. 

F-test.

Q.2

The test whether theory fits well in practical can be judged by

Ans. 

x²-test.

Q.3

If n = 1, then the chi-square reduces to

Ans. 

Exponential distribution.

Q.4

For testing a single proportion of the population test is used when the sample size is large.

Ans. 

Z-test.

Q.5

The criterion for one sided or two sided test depends on

Ans. 

Alternative hypothesis.

Q.6

Where the method of least squares is fitted ?

Ans. 

It is fitted to know about linear and quadratic trends.

Q.7

What is the best method for finding out seasonal variations ?

Ans. 

Ratio of moving average method.

Q.8

How many control lines are in control chart ?

Ans. 

Three control lines.

Q.9

The number of defects should follow.

Ans. 

Poisson distribution.

Q.10

The main tools of statistical quality control are

Ans. 

Shewhart charts and acceptance sampling plans.

★★★

⚡ELEMENTS OF STATISTICS, SET 10[PREV]

⚡ELEMENTS OF STATISTICS, SET 12[NEXT]

★★★