# HW3 - BME 423 HOMEWORK SET#3 FALL 2007 1 Inspiratory muscle...

• Notes
• 1

This preview shows page 1. Sign up to view the full content.

BME 423 HOMEWORK SET #3 FALL 2007 1. Inspiratory muscle function is assessed in patients with severe kyphoscoliosis by measuring the maximum inspiratory pressure (Pimax) developed against an occluded airway. The values of Pimax (in cm H 2 0) are given below for 7 patients: Patient #: 1 2 3 4 5 6 7 Pimax: 49.7 63.3 47.2 37.3 19.3 29.8 23.2 Determine the 95% confidence intervals for the population mean value of Pimax in kyphoscoliosis. 2. Find the 95 percent confidence interval for the difference in the mean duration of labor in women treated with prostaglandin E 2 gel compared with women treated with placebo gel using the following data: prostaglandin group – n = 19, mean duration = 7.9h, std. dev. = 5.2hr; placebo group – n = 19, mean duration = 15.2h, std. dev. = 4.4hr. Based on this confidence interval, is the difference statistically significant with P < .05? 3. Data from 10 premature infants from a larger study are shown in the table below. For each infant their gestational age in weeks is given along with their head circumference in cm. a. Find the linear regression relationship between gestational age (independent variable) and
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern