IQ scores Scores on an 10 test are normally distributed. A sample of 2510 scores had standard deviations. The developer of the test claims that the population standard deviation is a 19. Do these data provide sufficient evidence to contradict this colm? Use the a-0.05 level of significance Part 1 of State the appropriate null and alternate hypotheses 8 BED V HO 19 19 This hypothesis test is a totalled v test Part 1/5 Part of Find the critical values. Round the answers to three decimal place Foc -0.05, the critical values wid $