pls provide me the correct answers and explaninations

Which of the following is true of the alternative hypothesis? Carries the burden of proof Gets the benefit of the doubt The default belief or "status quo" Associated with no change in course If the alternative hypothesis is that the mean is greater than 14, what part of the curve is used as the rejection region? The right tail of the curve The left tail of the curve The middle tail of the curve Both tails of the curve If you want to show that the mean is different or has changed, what is the appropriate type of alternative hypothesis? Two-sided alternative One-sided "less than" One-sided "greater than"