Would like to see the work for myself for future reference to do on my own please

SAT scores: Scores on the math SAT are normally distributed. A sample of 21 SAT scores had standard deviation s = 88. Someone says that the scoring system for the SAT is designed so that the population standard deviation will be at most o - 69. Do these data provide sufficient evidence to contradict this claim? Use the a = 0.01 level of significance. Part: 0 / 5 Part 1 of 5 State the null and alternate hypotheses. H : 6 = X H :0 # This hypothesis test is a two-tailed test. Part: 1 / 5 Part 2 of 5 Find the critical value. Round the answer to three decimal places. For a = 0.01, the critical value is 2.33 X Part: 2 / 5 Part 3 of 5 Compute the test statistic. Round the answer to three decimal places. X