We wish to study the economic solvency of the group of fishing companies in the country. The classification criterion depends on the average capital of each company; if this exceeds 1,000 monetary units, it is considered an economically solvent company. A random sample of 25 of these companies is selected, obtaining a sample mean of 1,040 monetary units and a sample variance of 6,400 (the capital of the companies is an approximately normal random variable). Consider ? = 0.05

The following can be stated:

I. The most appropriate alternative hypothesis is H1 > 1,000. II. The null hypothesis is accepted. III. The most appropriate test statistic is: