Please help

1. A condence interval was created by your colleague regarding the mean age a person first experiences disappointment and they computed a 95% confidence interval. You are going to do a similar study, but felt like your colleagues results were too precise and you wanted to make a wider confidence interval. Give two things you could do to get a wider confidence interval. 2. 5% is a very common significance level for significance tests, but it Is arbitrary. 3. Give an example where you might want to use a significance level lower than 5%. Explain why you would use the lower level. b. Give an example where you might want to use a significance level higher than 5%. Explain why you would use the higher level