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Why should you NOT purge the contents of the reservoir bag prior to post-    oxygenation?   

The scavenger hook-up:   

All of the following are true of nitrous oxide EXCEPT:  

The stage of sedation desirable for performing dental procedures is known as:  

What is the most critical measure to control in regard to nitrous oxide leakage from the patient?  

Don’t worry too hard about a conclusion on this draft. You only have one class period to get this going!  The most important thing to do is to practice writing on a first draft and get your thoughts down on paper.

 According to the American Time Use Survey, the typical Americans spends 154.8 minutes per day watching TV. A survey of 50 internet users results in a mean time watching TV per day of 128.7 minutes, with a standard deviation of 46.5 minutes. At the 0.05 significance level, test the claim that the Internet users spend less than 154.8 minutes per day watching TV. (14pts) Perform the following steps:  (3pts) Step 1: Requirements (2pts) Step 2:                 (3pts) Step 3: Test statistic (round to 3 decimals) (3pts) Step 4: Critical value (round to 3 decimals) (2pts) Step 5: Critical value Method  (1pt) Step 6: Conclusion  

The Revenue Commissioners in Ireland conducted a contest for promotion. Statistics from the ages of successful and unsuccessful applications are given below. Some of the unsuccessful applicants charged that the competition involved discrimination based on age. Assume the data were normally distributed.  Sample size Sample mean Sample standard deviation Ages of unsuccessful applicants 26 47 7.2 Ages of successful applicants  30 43.9 5.9 Construct a 95% confidence interval for the difference between the mean age of the successful applicants and the unsuccessful applicants. Show detailed work for the following steps: (6pts)  a) Calculator command:  b) Information input:  c) Confidence interval (round to 1 decimal place):  d) Interpretation:   

12 of 4500 people vaccinated against a certain disease later developed the disease. 18 of 6,000 people vaccinated with a placebo later developed the disease. A) Test the claim that the vaccine is effective in lowering the incidence of the disease using the steps below . Use the 0.02 significance level.  (14pts) Perform the following steps:             (3pts) Step 1: Requirements             (2pts) Step 2:                                                   (3pts) Step 3: Test statistic: (round to 3 decimal places)             (3pts) Step 4: P-value: (round to 3 decimal places)             (2pts) Step 5:  P-value method             (1pt) Step 6: Conclusion:    B) Construct a 94% confidence interval for the difference between the rates of developing the disease for the vaccine group and the placebo group using the following steps. (6pts) Perform the following steps:             (1pt) Command:              (2pts) Information for the command:             (1pt) CI: (round to 3 decimal places)             (2pts) Does it appear there is a difference between the two rates of developing the disease from the two groups? Explain   C) (2pts) Are the hypothesis test and the confidence interval giving the same result? Explain

 Find the indicated probability. Round the answer to 4 decimal places. (3pts) The participants in a TV quiz show are picked from a large pool of applicants with approximately equal numbers of men and women. Among the last 11 participants there have been only 2 women. If participants are picked randomly, what is the probability of getting at most 2 women when 11 people are selected?