1.In some business situations there is is no difference between null and alternate hypothesis.

True

False

2.

When population standard deviation is known, the correct distribution to use for a hypothesis testing is a normal distribution.

True

False

3.

In hypothesis testing, making decision that that causes a false alarm is equivalent to

a.

Correct decision

b.

Null hypothesis

c.

Type-2 error

d.

Type-1 error

3.

In the hypothesis testing procedure, alpha is

a.

1 - level of significance

b.

the confidence level

c.

the level of significance

d.

the critical value

4.

When sample standard deviation is known in a hypothesis testing, the correct distribution to use is a normal distribution.

True

False

5.

When sample size is more than 1000, type-1 and type-2 error do not exist.

True

False