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Two formats for a new series of social studies textbooks are being considered.  The first has questions at the beginning of each section of the book.  The second has the same questions at the end of each section.  A small preliminary study was undertaken by the publisher to examine the preferences of teachers.  Twenty-four teachers were randomly selected from the list of all teachers in the city of Chicago.  The publisher met with these teachers.  Samples of both formats were given to the teachers.  After examining both types of textbook, the teachers identified the format they preferred.  Eighteen of the 24 teachers favored questions at the beginning.  The outcome of interest to the publisher was the proportion of teachers who favored questions at the beginning.  Let p represent the population proportion of teachers who favor questions at the beginning. Assume the standard error of the sample proportion is 0.10 (actually it is not).  For a test of the null hypothesis that the population proportion is 0.5 against the alternative that it is greater than 0.5, what is the P-value?

In a recent study of perfect pitch, 145 UI music students were randomly sampled.  Of 50 males, 15 had perfect pitch, whereas 38 out of 95 females had perfect pitch.  Which of the following gives a 98% confidence interval for the difference in population proportions between male and female music students at UI?

Two methods of teaching statistics are to be compared.  Method A (experimental) involves the use of computerized instruction, with each student using the computer whenever they please for as long as they please.  Method B (traditional) involves lectures, textbook, and study manuals.  From the 32 students who enrolled for this course, 13 were randomly assigned to Method A and 19 to Method B.  At the end of the semester, a valid achievement test was given to the students in both groups.  The results of this study will be used to help decide if Method A should be adopted in place of Method B.  The following summary statistics were obtained: Method A (Experimental) Method B (Traditional) n 13 19 Mean 57 50 SD 10 10 Based on the data, a two-sided 90% confidence interval for  

During your clinical internship, a patient with Carpal Tunnel Syndrome has asked you about the effectiveness of a wrist orthosis/brace for pain control. You have decided to do a literature review to provide the patient with an evidence based response and choose to review a series of randomized control trials (RCTs). You found four RCTs and now you need to critically review the articles and create a comparison table. What will be the independent variable and the dependent variables that you might want to identify in all studies to facilitate comparison?

Nutrient‑rich agricultural runoff containing nitrogen and phosphorus frequently results in  _____________.

An individual’s ability to understand health information and make informed decisions about their health is related to: 

The MCID for the 6 minute walk test for patients with COPD is 54 meters.  Your patient with COPD shows a change of 58 meters during their inpatient rehabilitation stay.  This number suggests:

The Dynamic Gait Index is a measure that assesses likelihood of falls, where a score of >22 out of 24 determines subjects are safe ambulators (i.e. not likely to fall).  The measure was recently utilized in an outpatient clinic with varied athletes, and the majority of patients assessed scored at least a 22.  What does this suggest about the measure?    

What’s a good way to prevent “session fixation” attacks while maintaining security as a whole?

How do no-till farming in “smart farm” agriculture and terracing in labor-intensive agriculture maintain and enhance soil fertility?