1. SCOPE

1.1 This standard (Part 1) lays down the following tests of significance:

a) One-sample test - Testing of mean of a population against a specified value:

1) when the population variance is known, and

2) when the population variance is not known.

b) Two-samples test - Testing equality of means of two populations:

1) when the variances are known, and

2) when the variances are not known.

c) Testing for equality of variances of two populations.

d) Testing for proportions.

1.2 This standard does not include the t-tests for regression coefficient and correlation coefficient as they are covered in IS 7300 ‘Methods of regression and correlation’.

2. REFERENCES

The following standards contain provisions, which through reference in this text constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below:

7920 Statistical vocabulary and symbols:

(Part 1) : 2012 Probability and general statistical terms (second revision)

(Part 2) : 2012 Statistical quality control (second revision)