Question

Compute the standardized test statistic, χ 2, to test the claim σ 2 = 25.8 if n = 12, s 2 = 21.6, and α = 0.05.

Answer 1

`t^2=9.2`

Explanation:

From the question we are told that

Standard Deviation
`\sigma=28.8`

Sample space
`n=12`

`s^2= 21.6`

Generally the equation for test statistics is mathematically given by

`t^2=frac{(n-1)*s^2}{\sigma^2}}`

`t^2=((12-1)*21.6)/(25.8)`

Therefore the standardized test statistics

`t^2=9.2`