A factory has been able to produce a very specialized nano-technology component with 80% reliability, that is, 80% of the components passed its quality assurance requirements. They have now changed their manufacturing process and hope that this has improved the reliability. To test this, they took a random sample of 159 components produced using the new process and found that 141 components passed the quality assurance test. Does this show a significant improvement over the old process? Use a significance level of 5%. Answer the following questions, 1) Select the alternative hypothesis 2) Calculate the test statistic 3) Calculate the p-value

Interpret the confidence interval for the following problem. A nurse is interested in the average weight of a newborn baby. The nurse collects a random sample of 14 newborn babies. From the sample, she observes an approximately normal histogram, an average of 8.17 and a standard deviation of 2.38. Using a significance level of 10%, test the claim that the average weight of a newborn baby is greater than 7 pounds. Round final answers to two decimal places.

A 10-year-old presents for care with a body temperature of 100.5 degrees F by ear thermometer.  The mother noticed some “bumps” on the scalp behind the ears yesterday.  On examination, these lesions appear fluid-filled and a few additional pink maculopapular lesions on the upper chest 87.are noted.  The tympanic membranes are translucent and gray.  The throat is not red, and there is a small amount of clear discharge from the nose.  The lungs are clear, and the remainder of the examination is unremarkable.  Which of the following diagnoses is the most likely cause of the presenting symptoms?

A 11-year-old male is seen for well-care. On physical examination a painless mass in the left side of his scrotum is felt. On exam he has a positive silk glove sign. The MOST likely diagnosis is:    

A 16-year old presents following a football game in which he collided with another player. Which complaints warrant emergency room referral?  

What effects does lead poisoning have on the renal system?  

All of the following are appropriate for assessing scoliosis in the adolescent EXCEPT: 

What contributes to the preterm newborn developing anemia of prematurity?  

Which statement(s) is/are true regarding cryptorchidism (multiple answers)?

Which laboratory study measures the blood capacity to bind iron with Transferrin?