can someone help me solve these practice problems please ?

A new drug trial has begun for a virus vaccine, and a study has been conducted. Group 1 had 81 people in it, that received the vaccine. Their average length of illness was 24.53 days, with a sample standard deviation of 10.5 days. Group 2 had 200 people in it that did not receive the vaccine. Their average length of illness was 28.2 days, with a sample standard deviation of 15.95 days. The test is being conducted to the 99% confidence level, to find if the treated group had a significantly different outcome from the untreated control group. Considering the relationship between Type I and Type II errors, and what each of those mean in this situation, consider which type of error is worse (1 sentence). Once you've decided which is worse consider if the 99% confidence level is justified relative to the other common confidence levels we've talked about (1 sentence). Finally, what is the worst case scenario you can think of in terms of errors in this case? (1 sentence) Maximum number of characters (including HTML tags added by text editor): 1,000,000 Show Rich-Text Editor (and character count).Consider 2 groups of people drawn from UNC students. Group 1 was 150 people gathered by simple random sample and given a presentation of the steps the university has taken to help control the corona virus. After the presentation, 0.85 of the group approved of the steps the university is taking. The other group was a simple random sample of 200 people that were simply asked if they approved of the university's handling, with no further information. Of this group, 0.76 approved of the university's handling of the situation. The university wants to know if there is a statistical difference between these groups' responses, at the 95% confidence level. What type of hypothesis test would be appropriate based on the wording of the question above? A. Two Tailed OB. Left Tailed OC. Right Tailed OD. One Tailed Reset Selection