Wednesday
September 17, 2014

Homework Help: statistics

Posted by sai on Friday, January 6, 2012 at 1:03pm.

You are conducting an experiment to see if a given therapy works to reduce test
anxiety in a sample of college students. A standard measure of test anxiety is known to
produce a  = 19. In the sample you draw of 86 the mean is equal 17.5 with standard
deviation s = 10.
a- Use an level of 0.05 to test the hypothesis that the mean is less than 19.
b- Find the 95 % one sample con dence interval for the mean.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

stats - Which test do you use to solve this problem One-sample or independent ...
stats - Which test do you use to solve this problem One-sample or independent ...
psychology - in his research, Dr. Caulfiel wants compare levels of tests anxiety...
Statistics - The Computer Anxiety Rating Scale (CARS) measures an individual's ...
statistics - a random sample of 80 college students was selected to participate ...
statistics - The Frayed Nerves Anxiety Scale (FNAS) is used to measure the ...
Statistics - I bemieve the t test is paired , want to make usre beofre I run the...
Statistics - Suppose you administered an anxiety test to a large sample of ...
statistics - Suppose you administered an anxiety test to a large sample of ...
stsats - A researcher wanted to answer the following question: What is the ...

Search
Members