Determine whether the function below is an even function, an odd function, both, or neither. f(x)=x^2+3 answers choices: a. odd function b. even function c. neither even nor odd d. both even and odd

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.