A pharmaceutical company is formulating a new medication that prevents painful gout attacks. However, the lead researchers are also mindful of its impacts to the human liver, which can be indicated by...

Extracted text: A pharmaceutical company is formulating a new medication that prevents painful gout attacks. However, the lead researchers are also mindful of its impacts to the human liver, which can be indicated by monitoring levels of alanine aminotransferase (or ALT, in U/L units) . If the ALT levels exceed an average of 55 U/L, there is an indication of the drug having damaging effects to the liver. Let us assume that ALT levels are normally distributed with standard deviation of 15.7 U/L. To determine the consequence of this new drug, they randomly selected 162 adult men with gout and monitored levels of alanine aminotransferase (or ALT, in U/L units) after taking the new medicine for 6 months. From the sample, it is found that the average ALT level is 59 U/L. It is suspected levels are significantly increased. Conduct a test of significance with a=0.05. (Source: Liver function tests. (2019, June 13). Retrieved from https://www.mayoclinic.org/tests-procedures/liver-function-tests/about/pac- 2039459) What is the value of the Z-test statistic? 3.24 1.23 4.00 -3.24 0.25