A 45-year-old male patient that weights 150 kg is undergoing polysomnography to determine appropriate CPAP levels.  The patient’s baseline AHI is 51.  At a CPAP level of 9 cm H2O, the AHI is now 7.  The respiratory therapist should recommend which of the following? 

An 80-year-old male is admitted to the hospital complaining of dyspnea and general pulmonary congestion with moist crepitant rales.  Chest radiograph reveals fluffy infiltrates and a batwing pattern.  Which of the following best represents the patient’s condition?  

While assessing a patient’s chest radiograph, the respiratory therapist observes an area of hyperlucency.  This may be the result of which of the following? 

The respiratory therapist is reviewing the results of a pulmonary function test.  The data shows FEV1/FEV% is 58%, SVC is 81% of predicted.  DL,CO is 62% of predicted.  Which of the following most likely represents the patient’s condition? 

The class Animal is _____ . Select ALL that apply.

A researcher would like to examine whether there is a consistent, predictable relationship between political preference and personality. A sample of 100 students is obtained. The results are summarized in the following frequency distribution. Which chi-square value is obtained when conducting a chi-square test of independence, and which decision should be made regarding the hypothesis test using α = 0.05?                                                                         Political Preference                                                             Liberal                                         Conservative                      Type A Personality            ​ Observed Frequency = 15 Expected Frequency = 23.65 Observed Frequency = 40 Expected Frequency = 31.35 Observed Frequency = 28 Observed Frequency = 17                      Type B Personality Expected Frequency = 19.35 Expected Frequency = 25.65 ​

The following table shows the results of an analysis of variance comparing three treatment conditions with a sample of n = 7 participants in each condition. Note that several values are missing in the table. What is the missing value for MSbetween? Source         SS      df      MS Between      20      xx      xx      F = xx Within         xx      xx        2 Total            xx     xx  

Exhibit 13-7The following is part of an ANOVA table, which was the result of three treatments and a total of 15 observations. Source of Variation Sum ofSquares Degrees ofFreedom MeanSquare F Between treatments 64       Within treatments (Error) 96       Total         ​   Refer to Exhibit 13-7. The computed test statistic (F-ratio) is _____.

Exhibit 13-7The following is part of an ANOVA table, which was the result of three treatments and a total of 15 observations. Source of Variation Sum ofSquares Degrees ofFreedom MeanSquare F Between treatments 64       Within treatments (Error) 96       Total         ​   Refer to Exhibit 13-7. If at a 5% level of significance, we want to determine whether or not the means of the populations are equal, the critical value of F is _____.

The following table shows the results of an analysis of variance comparing three treatment conditions. What is the value of h2, the percentage of variance accounted for? Source         SS      df      MS Between      30        2      15      F = 7.50 Within         60      30        2 Total            90      32 ​