Aclient with atrial fibrillation is receiving a continuous heparin infusion at 1000 units/hour. the nurse determines that the client is receiving the therapeutic effect based on which results? a) prothrombin time of 12.5 secondsb) activated partial thromboplastin time of 60 secondsc) activated partial thromboplastin time of 28 secondsd) activated partial thromboplastin time longer than 120 secondsb) activated partial thromboplastin time of 60 seconds

What is the percentage change in price for a zero coupon bond if the yield changes from 6.56.5% to 5.55.5%? the bond has a face value of $1 comma 0001,000 and it matures in 1010 years. use the price determined from the first yield, 6.56.5%, as the base in the percentage calculation?

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups.b. we cannot infer anything from these data since the distribution of salaries is likely right skewed.c. you cannot draw any valid conclusions because the sample sizes are different.d. more students should complete internships because having an internship produces a higher salary.

True of false: the chancellor of a university has commissioned a team to collect data on students' gpas and the amount of time they spend bar hopping every week (measured in minutes). he wants to know if imposing much tougher regulations on all campus bars to make it more difficult for students to spend time in any campus bar will have a significant impact on general students' gpas. his team should use a t test on the slope of the population regression.