There are _______ branches of statistical inference.

(a)

1

(b)

2

(c)

3

(d)

4

An _______ is a specific observed value of a statistic

(a)

Estimation

(b)

Estimator

(c)

Estimate

(d)

Testing of hypothesis

If 55 is the mean mark obtained by a sample of 5 students randomly drawn from a class of 100 students is considered to the means marks of the entire class. This single value 55 is a

(a)

estimation

(b)

estimate

(c)

point estimate

(d)

estimator

If α is the level of significance. then the confidence Co-efficient is

(a)

α

(b)

1

(c)

1-α

(d)

1+α

Any hypothesis which is complementary to the null hypothesis is _______ hypothesis.

(a)

Null

(b)

Alternative

(c)

Statistical

(d)

testing