Glven the folowing hypotheses: Hu- 400 Hi ut 400 A random sample of 12 observations Is selected from a nomal population The sample mean was 407 and the sample standard deviation 6. Using the 0.01 signfican ce level a. State the decislon rule. (Negatlive amount should be Indicated by a mlnus slgn. Round your answers to 3 decimal places.) Reed H0 vhente test statitcis the irteval ( b. Compute the value of the test statistic (Round your ans wer to 3 decimal plac es.) Value of the tet stdo c. Wh at is your deasion regarding the nul hypothess?

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