1)Construct the indicated confidence interval for the population mean mu using a t-distribution.

c=0.99, x overbar=114, s=10, n29

The confidence interval is ( , )?

2)43% of a certain country's voters think that it is too easy to vote in their country. You randomly select 12 likely voters. Find the probability that the number of likely voters who think that it is too easy to vote is (a) exactly three, (b) at least four, (c) less than eight.

A)P(3)=

B) P(x>-4)=

C) P(x<8)=