1. (Critical T or Z Value)

2. (State the null Hypothesis)

3. (Calculated T or Z)

4. (Accept or Reject Null Hypothesis)

5. (Upper Limit)

6. (Lower Limit)

Heres the problem. Studies from the FDA shows that a particular strain of bacteria infection will no longer be contagious if exposure is ordained beyond 36 hours as the bacteria dies within less than 36 hours. A study was conducted on 121 samples of the bacteria infection. The samples revealed that the bacteria died on average of 36.8 hours with a standard deviation of 7.25 hours

1. Test if the 121 sample meets the 36 hour requirement at thea = .05 level of significance
2. What is the 95% confidence interval values for this study sample

show work and answer problems 1-6.