Use the follow scenario for Questions 6, 7, and 8. You are trying to determine whether a new material is more elastic than the existing standard, which has a mean elasticity of ,u = 2.7. You run 12 trials and obtain a sample mean of M12 2 3.3. The standard deviation for your measurements is known to be a = 0.9. The null hypothesis is that the new material has the same average elasticity as the existing standard. What kind of significance test should you use? One~Sample ZTest OneSample T-Test TwoSample ZTest TwoSample TTest QUESTION 7 Calculate the pvalue for the selected test. Enter your answer, up to three decimal places. QUESTION 3 i . Should you reject the null hypothesis at a significance level of 0.05? Reject the null hypothesis. Fail to reject the null hypothesis