( a ) Do the data present sufficient evidence to indicate that the mean potency differs from 5 my / Cc ? ( Use a = 0. 05 . ) State the null and alternative hypotheses . HO : M * 5 versus Ha : 1 = 5 - HO : M = 5 versus Ha : 1 5 O HO : M 5 . HO : 1 = 5 versus Ha : M * 5 State the test statistic . ( Round your answer to three decimal places . ) State the rejection region . ( If the test is one-tailed , enter NONE for the unused region . Round your answers to three decimal places . ) + >| t 0 .2\\ ` HO : 02 = 0.0011 versus Ha : 02 > 0 . 0011 HO : 02 - 0. 001 1 versus Ha : 02 * 2 . State the conclusion .\\ `O HO is not rejected . There is insufficient evidence to indicate that the variation in potency differs from the specified error limits . ` HO is rejected . There is insufficient evidence to indicate that the variation in potency differs from the specified error limits . HO is not rejected . There is sufficient evidence to indicate that the variation in potency differs from the specified error limits . . HO is rejected . There is sufficient evidence to indicate that the variation in potency differs from the specified error limits ." You may need to use the appropriate appendix table or technology to answer this