Question

le L. Length: Exit this Exam Scared out of: Exam in Week 5 No time limit 25 questions 50 Points Time Remaining Not Timed Save Progress Last Saved: 11:42 AM increased sensitivity 23) Your patient returns from physical therapy with a summary report that states her post-surgical pts range of motion has a corresponding Z score of -0.43. You know this means your patient: Has better range of motion when compared to the average post surgical patient, Has worse range of motion when compared to the average post-surgical patient Has had a slight decrease in her range of motion this week. Is improving but still has not reached the average range of motion for post-surgical patients. 24) You read a study which studies the association between taking acyclovir and developing thrush. The alpha of the study is 0.05 and the reported p value is 0.08. You know this means The result is statistically Significant A type error was made This is a clinically significant

Answer 1

The correct option should be option c,"Has had a slight decrease in her range of motion this week",as z score is

,

Z = 2

where $\mu$ is the average motion(population) and $\sigma$ is the corresponding population standard deviation and n is the number of observations..

Now,Z~N(0,1)

Hence,$-\infty$<observed z<$\infty$​​​​​​.Also,Z is symmetric about zero.The negative sign represents there is a decrease in her range..But this decrease is small compared to the range of the Z-score.