Every year, dozens of new vaccines are developed. It is the responsibility of the Therapeutic Goods Administration (TGA) in Australia to judge the safety and effectiveness of the vaccines before approving them to be used for the public. The null and alternative hypotheses are as follows: H₀: The vaccine is unsafe and ineffective and H_A: The vaccine is safe and effective. Often, TGA makes a decision based on data from animal experiments and human trials. Describe the two types of errors that TCA might commit. Now, suppose that a trial test result is with the p-value equal to 0.015. What is the minimum significance level that the null hypothesis can be rejected? Explain.