Question: pls answer with explanations 2. (5p) Explain as well as you can: . Which error type would you usually try to reduce in hypothesis testing?

pls answer with explanations

2. (5p) Explain as well as you can: . Which error type would you usually try to reduce in hypothesis testing? Type I error or Type II error? Please explain why? . If the sample is fixed (incl sample size), can you reduce Type I and Type II error simultaneously somehow? If yes, then how? If no, then why? 3. (1p) Assuming I have a sample and I have calculated a confidence interval from there at confidence level 90%. If I increase the confidence level, what will happen to my confidence interval

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