Unit 3 II Maths stat

A statistical hypothesis is:

• A statement about a population parameter

• A summary of data

• A type of graph

• A sample value

A simple hypothesis specifies:

• A range of values for a parameter

• An exact value of a parameter

• Multiple parameters

• Sample statistics only

A composite hypothesis refers to:

• A hypothesis with one parameter

• A test statistic

• A hypothesis with more than one possible value for a parameter

• A graph of normal curve

The null hypothesis is usually denoted by:

• H₁

• H₀

• Hx

• Ho

The alternative hypothesis is:

• Always true

• Denoted by H₀

• Denoted by H₁

• Not testable

If evidence supports the alternative hypothesis, we:

• Accept H₀

• Accept H₁

• Accept both

• Reject both

The hypothesis stating "no effect" is:

• Composite

• Alternative

• Null

• Simple

If H₀: μ = 10 and H₁: μ ≠ 10, it is:

• One-tailed left

• One-tailed right

• Two-tailed

• Not valid

The critical region is the set of values for which we:

• Reject H₀

• Accept H₀

• Accept H₁

• Cannot determine

The boundary of the critical region is determined by:

• Sample mean

• Mode

• Significance level

• Population