1. A researcher at a counseling clinic wants to evaluate
whether the clients at her office need a different number of
counseling sessions than clients at other counseling clinics.
To do this she compares the number of visits of a sample of
clients (listed below) to the national average of the number
of visits to counseling clinics which is 11. (5 points)
10 10 11 12 889 11 10
6
9
10
10 10 9 8 12 12 119 10
Is this a one-tailed or a two-tailed test?
What is the alternative hypothesis?
What is the null hypothesis?
With a .05, what is the to...?
crit
What is the t value (tobt)?
Is there a relationship between the researcher's counseling
clinic and number of counseling sessions? If so, describe
the relationship.
What is the 95% confidence interval?