8 maybe 8/12 or 4/12 maybe because 2 4 (6 8 10 and 12 are all even numbers so 4/12
Answer:
true
Step-by-step explanation:
Answer: -0.37
Step-by-step explanation:
As per given , we have
Population proportion : 
Sample size : n= 250
Sample proportion : 
Test statistic for population proportion :-
![z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\\\=\dfrac{0.24-0.25}{\sqrt{\dfrac{0.25(1-0.25)}{250}}}\\\\=-0.36514837167\ \ \text{(Simplified)}\\\\\approx-0.37 \text{[Rounded to 2 decimal places.]}](https://tex.z-dn.net/?f=z%3D%5Cdfrac%7B%5Chat%7Bp%7D-p%7D%7B%5Csqrt%7B%5Cdfrac%7Bp%281-p%29%7D%7Bn%7D%7D%7D%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%7B0.24-0.25%7D%7B%5Csqrt%7B%5Cdfrac%7B0.25%281-0.25%29%7D%7B250%7D%7D%7D%5C%5C%5C%5C%3D-0.36514837167%5C%20%5C%20%5Ctext%7B%28Simplified%29%7D%5C%5C%5C%5C%5Capprox-0.37%20%5Ctext%7B%5BRounded%20to%202%20decimal%20places.%5D%7D)
Hence, the test statistic for this hypothesis test for a proportion= -0.37