Make an easy 25$

what grade are you in little one

college ....questions are related with T, Z, Confidence values for the most part

=)

Whips out ti-83+ Sliver

2nd mode => stats

I have that same calculator. I had to return the first one I bought because I screwed it up trying to upgrade the firmware.

google.com - free

Other boards with classes on subj - free

Doing the work yourself, so you understand what is going on and your education is actually worthwhile - priceless.

Just post the questions.

Here are first 3 questions to start off with.

I decided to do it like this. For every question you answer you get 2$. Will post the others shortly. Got a bunch more


1) In 1919 a study of four blood groups was conducted for various populations. In a random sample of 120 residents it was observed that 75 had type B blood. Determine a 93% confidence interval for residents who have type B Blood


2) An IQ test was administered to a random sample of 25 of 135 chronic schizophenic pateints and the mean was found to be 98 with a standard deviation of 15. The population values are known to be normally distributed. Construct a 95% confidence interval for the mean IQ of chronic schizophrenic patients.

3) There are 300 students living in a dorm. In a random sample of thirty-five students, twenty-one say they will vote in favor of the change. Construct a 97% confidence interval for the population percentage favoring the change in policy. Assume the student resident population is normally distributed.

go to efnet channel #math and they will answer all your questions for free

That easy?