D Question 1 1 pts Corporation X with 20,000 employees claims that 80% of its employees are very happy with their jobs. Their rival, Company Z, suspects that they are lying and wants to see if the proportion of happy employees at corporation X is really less than 80%. They take an srs of 50 employees and 76% say they are very happy with their jobs. alpha = 5% What is the best description of p-hat? O p-hat , the proportion of the population of employees at Corporation X that is very happy with their jobs. O p, the proportion of the population of employees at Corporation X that is very happy with their jobs. O p-hat , the proportion of the sample of employees at Corporation X that is very happy with their jobs. O p, the proportion of the sample of employees at Corporation X that is very happy with their jobs