How should an AP elbow projection in partial flexion be obtained? With the forearm parallel to the IR, CR perpendicularWith the humerus parallel to the IR, CR perpendicularFlexed elbow resting on olecranon process, CR perpendicular

What is the correct central ray for a PA projection of the first digit?

Using Table 1 (in the tables document), what is the weight for the following Z scores:  -2 3

Using the regression equation from the previous problem, what is the reported anxiety when x is 3? What about 0?  

Using Table 1 (in the tables document), calculate the following:  Standard Deviation:  Variance:

Using Table 1 (in the tables document), find the 5 number summary. Which quartiles has the most data? 

When polling, in district A, 498 of 1000 agreed with Amendment A. In district B, 506 of 1000 agreed with Amendment A. Use alpha = 0.05 conduct a confidence interval for the difference of proportions between district A and district B. Use alpha =0.05.

Using the last two problems (table 2 data), interpret both the hypothesis test and confidence interval. What does each demonstrate?

Using the below table on reported anxiety and medication use, determine what the regression equation is and interpret it.  Coefficients Standard Error t Stat P-value Intercept 6.1 2.1 19.1 0.001 X Variable 1 -3.9 1.1 4.5 0.002

(d) Write the quadratic in factored form.