Stat 235, ASAP please. 22

In the 1983 film, WarGames, the visual effects technicians not only needed to synchronize the largest projection screens on set in real time for filming, they also needed to synchronize the many smaller video screens for a major moment in the film ("post- production" visual effects did not exist as they do today). The difficult task required that the refresh rate for each screen should be approximately 60 Hz (too high or too low would affect synchronization). In the early days of setup, one skeptical technician randomly selected 61 video screens and found their refresh rate had an average of 59.87 Hz and a standard deviation of 0.5 Hz. In a test to disprove the video screens were capable of the needed refresh rate, what are, respectively, the appropriate alternative hypothesis and test statistic value? O HA: J