A patient presented with complaints of palpitations and shor…
A patient presented with complaints of palpitations and shortness of breath. Significant characteristic of the electrocardiogram (ECG) result shows an atrial rate of 290 beats/min, 4:1 block and saw-toothed like appearance. The nurse knows that the patient has what type of dysrhythmia?
Read DetailsAnother test of the MSki program was performed. Does the MSk…
Another test of the MSki program was performed. Does the MSki program improve performance down the slope (i.e. decrease the ski time, going faster)? Assume unequal variances (i.e., do not use the pooled standard deviation formula). Control Skier ID Age Control Time MSki Skier ID Age MSki Time 01 10 41.13 16 11 41.12 02 12 40.44 17 12 42.33 03 11 42.16 18 10 41.16 04 10 43.55 19 10 40.51 05 12 42.10 20 11 39.52 06 12 41.11 21 11 40.11 07 11 39.55 22 11 40.56 08 12 42.16 23 11 42.01 09 11 44.16 24 12 40.36 10 12 42.33 25 10 40.24 11 10 42.24 26 10 42.26 12 10 40.36 27 12 40.20 13 12 44.25 28 12 41.12 14 11 43.33 29 11 41.25 15 11 41.25 30 10 39.13 Mean 42.008 40.792 SD 1.3980 .9405 a). What is the null hypothesis? b). What is the alternative hypothesis? c). Calculate a t test on the sample, and its corresponding p-value d). Interpret the t test results and p-value e). Calculate the 95% confidence interval for the t test f). Provide an effect size “r” and interpret
Read DetailsSuppose we are testing a new diagnostic test for gluten sens…
Suppose we are testing a new diagnostic test for gluten sensitivity in children. It has a sensitivity of .96, a specificity of .91. Gluten sensitivity (Celiac) in children has a prevalence of .02. What is the PPV of this new test?
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