Question

Hi, can you help me answer this question please, thank you

Answer 1

Step-by-step explanation:

The test statistic for proportion is equal to:

`z=\frac{p^(\prime)-p_{}}{\sqrt[]{(p(1-p))/(n)}}`

Where p' is the sample proportion, p is the value in H0, and n is the size of the sample.

In this case, p = 0.72, n = 51 and p' can be calculated:

`p^(\prime)=(37)/(51)=0.7255`

Then, replacing these values, we get: