A random sample of 10 measurements gave the sample mean 3 = 10.94 and the sample variance .5" = "#295 (a) What assumptions must you make concerning the population in order to test a hy- pothesis about the population variance 02'? (b) Suppose the assumptions in part (a) are satised. Test the null hypothesis or2 = 4 against the alternative hypothesis oz 5.5 4. Use a = 0.05. Find the approximate range of pvalue using statistical tables. (0) Suppose the assumptions in part (a) are satised. Test the null hypothesis :79 = 4 against the alternative hypothesis 6'2 > 4. Use a: = 0.05. Find the approximate range of pvalue using statistical tables