Hey, can someone please help me with this business statistics question?

Question 1 Notyetsaved Marked out of 200 17 Flag queson In Stat 1250, the proportion of HD students is 0.18. In the last session, based on a random sample of 50 students, we found 15 of them obtained an HD grade. Use this information and a z-test of a population proportion to determine whether the proportion of HD students in Stat 1250 is 0.18. 1. (1 mark) What is the value of the z-test statistic for testing the population proportion of HD students: (3dp) Answer the same question using the chi-square goodness of fit test. 2. (1 mark) What is the value of the chi-square test statistic = (3dp) Hint: think about how a test of a single proportion and chi-squared goodness of fit test is connected, will provide you with a shortcut to get the chi-squared test statistic