Posts by reba
Total # Posts: 21
"John"'s answer is incomplete. The real solution is: W_female: (235.1 - 197.2)/2 = 18.45 t-value for females: 2.048 SD_female: (W*sqrt(n))/t = (18.45*sqrt(29))/2.048 = 48.5 As stated, the margin of error for males is 10. We assume the t-value for males is 2 based...
October 15, 2016
anadian was once part of British and French. The people in Quebec are most likely French or have a French ancestry. They speak French their and counts it as a main language. I think Quebec want to break away because of its French history or canadian's involvement with ...
March 28, 2013
A protein molecule in its folded native state has one favored conformation, but when it is denatured it becomes a random coil, with very many possible conformations. What must be the sign of the change in entropy (S) for the change native---> denatured Would this be ...
September 13, 2009
what volume? sorry out of school for 30yrs! also 2nd part give soluability of 20/100ml in ether & 13.3g/100ml in water and the experiment is being done with 30g (mw 188.61) in 300ml of water to be extracted wih ether. I don't knwo how to proceed
August 27, 2009
300ml aq solution of 30g malononitrile extracted w/ether If K = 1.5 what results would be acheived from 3 100ml portions of ether...MORE importantly how do you work the problem..thanks
August 27, 2009
In a survey of 50 students, 23 owned cellular phones, 18 ownded digital cameras, X owned cellular phones and digital camera, 2X owned neither. a) How do i write an expression in X for the Total number of students in the survey and how do i find for X????
June 15, 2009
i Craig: I am already having trouble understanding Chapter 6, problem 2 on page 207 of textbook. I am currently on week 3 of the FIN 200 class. The problem reads as follows: If you require a 9 percent return on your investments, which would you prefer? a. $5,000 today b. $15,...
October 25, 2008
can you give me a list of topics I can write a speech on? For example: If I wanted to write to the MTA about getting the trains to be on time or more available trains to come more often. I need to persuade an audience to better something.
October 7, 2007