a. What would you change in the computation of a two-sided 95% prediction interval to find a

Question:

a. What would you change in the computation of a two-sided 95% prediction interval to find a two-sided 99% prediction interval instead?
b. What would you change in the computation of a two-sided 95% prediction interval to find a one-sided 95% prediction interval instead?
c. What would you change in the computation of a two-sided 95% prediction interval to find a one-sided 90% prediction interval instead?