The following is a set of hypotheses, some information from one or more samples, and a standard error from a randomization distribution. Test H0 :p =...

I do not know why I cannot get the answer to this. I attached an image i keep getting 4.9 but its saying that it is wrong. please explain

The following is a set of hypotheses, some information from one or more samples, and a standard error from arandomization distribution. TestH0 :p = 0.28 vsHa : p < 0.28when the sample hasn = 1000 ,and f; = 0.231withSE = 0.01 Find the value of the standardized z—test statistic. Round your answer to two decimal places. z: