BRIANNAMOSBY65GO BRIANNAMOSBY65GO Mathematics Answered Scores on an IQ test are normally distributed. A sample of 18 IQ scores had standard deviation s=8. (a) Construct a confidence interval for the population standard deviation . Round the answers to at least two decimal places. (b) The developer of the test claims that the population standard deviation is 3. Does this confidence interval contradict this claim? Explain.