Need help with critical values and test statistic please

Espanol SAT scores: Scores on the math SAT are normally distributed. A sample of 22 SAT scores had standard deviation s=85. Someone says that the scoring system for the SAT is designed so that the population standard deviation will be different than o=63. Do these data provide sufficient evidence to contradict this claim? Use the a = 0.10 level of significance. Part 1 of 5 State the null and alternate hypotheses. H:o = 63 X 63 This hypothesis test is a two-tailed V test. Part 2 of 5 Find the critical values. Round the answers to three decimal places. The critical values are 29.615 and -29.615 X