Recent content by quarklet

I just had a thought. I could use the probability of failure instead of success (i.e. 1 - .6000 = .4000). Then, I could look up n=15, p=.40 on the binomial distribution table. Starting at the lowest value of x (x=0, probability = .0005), it is evident that if one person was not cured, we...

Homework Statement A drug company markets a medication that cures about 60% of cases with depression. A CB program is thought to be more effective. It was delivered to 15 depressed people. Determine the minimum number of cured people required to support the claim that the CB program is more...

Homework Statement Karen asks John to guess the date of her birth, not including the year (i.e. the day and month she was born; discount leap years). If John guessed correctly on his first try, would you believe his claim that he made a lucky guess or would you be suspicious that he already...

YES! : ) It makes sense! First, thank-you for clarifying the orbital vs. gravitational potential energy; second, thank-you for guiding me through the calculations for part A. I was having a difficult time keeping my concepts and formulas straight while working with large numbers. Here is my...

Thank-you for your reply! a) Oh, so is this question asking how much work is required to move the satellite from the surface of the Earth to an orbit 500 000 m away? That makes sense. W = Egf - Egi W = mgh - mgh W = (2000)(9.8)(6.88x10^6) - (2000)(9.8)(6.38x10^6) W = -1.35x10^11 -...

The following question deals with planetary motion: energy totals and binding energy. I have solved the question to the best of my ability, but I cannot get the right answer! I don't know what I am doing wrong, and would greatly appreciate it if someone could point out my mistakes. Homework...