For questions 37-39, refer to the following: Wet a1. (2020) conducted a study to examine the basic knowledge on COVIDl9 among different types of dental health care workers in Saudi Arabia. The observed 'equencies for one of the questions are provided below. Using a 0.05 signicance level, you need to test the claim that there is a signicant association between type of dental health care worker and response to the question \"What is COVID19?\" Immunity Disorder What is SARS Infection COVID-19? Acquired Zoonotic Pulmonary Disease 37. What is the expected frequency of specialists who answered pulmonary disease? a. 0.35 b. 29.71 c. 43.00 (1. 47.06 6. Cannot be determined with the given information 38. How much does the cell for interns who answered SARS infection contribute to the overall test statistic? a. 29.7 1 b. 17.17 c. 8.00 d. 4.90 6. Cannot be determined with the given information 39. What is the distribution of the appropriate test statistic? a. twith 11 degrees of freedom b. X2 with 1 degree of freedom 0. X2 with 6 degrees of freedom d. X2 with 12 degrees of freedom e. F with 3 numerator and 2 denominator degrees of freedom