station was built, the librarian randomly recorded 52 people speaking at the library. Their average decibel level was 70.5 and their standard deviation was 15. What can be concluded at the the αα = 0.01 level of significance? For this study, we should use     The null and alternative hypotheses would be:       H0:H0:                   H1:H1:               The test statistic     =  (please show your answer to 3 decimal places.) The p-value =  (Please show your answer to 4 decimal places.) The p-value is     αα Based on this, we should      the null hypothesis.

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