When increasing the level of confidence from 95 to 95 we a l

When increasing the level of confidence from 95% to 95%, we: a) lose confidence but gain precision. b) lose precision but gain confidence that our answe interval is accurate. c) lose precision and lose confidence that our answer interval is accurate. d) none of the above

Solution

When the level of confidence is increased from 90% to 95%,we gain confidence but as the precision and the confidence are inversely proportional, so we lose precision,

So b) lose precision but gain confidence that our answe interval is accurate. is correct option