Thursday

October 23, 2014

October 23, 2014

Posted by **peter** on Thursday, April 29, 2010 at 3:35pm.

xbar= 3.05, s1 = .20, n1 = 15, xbar2= 3.25, s2 = .30, n2 = 15, á = .025, left-tailed test.

calculate

d.f. ____________

Standard error ____________

t-calculated ____________

p-value ____________

t-critical ____________

- statistics -
**MathGuru**, Thursday, April 29, 2010 at 7:37pmThis looks like an independent groups t-test.

Here are a few hints:

1. d.f. for an independent groups t-test is this: n1 + n2 - 2

2. Use the denominator of the appropriate t-test as the standard error of the difference between the two means.

3. Use the appropriate t-test to calculate the t-test statistic.

4. P-value is the actual level of the t-test statistic (found using a t-table).

5. T-critical can be found using a t-table with the appropriate degrees of freedom for a one-tailed test.

I hope this will get you started.

**Answer this Question**

**Related Questions**

Math - A club consists of 8 seniors, 7 juniors, and 4 sophomores. A ...

statistics - In a particular class, there are 3 freshmen, 5 sophomores, 11 ...

Math - There are 30 seniors, 15 juniors, 12 freshman, and 10 sophomores in the ...

geometry - the ratio of juniors to seniors is 9 to 8, if there are 51 juniors ...

Algebra 2 - Amanda surveyed 20 juniors and seniors at Delamar high school to ...

Probability - If 5 juniors and 4 seniors apply for a job at a school which has 2...

math - there is 2 freshmen, 4 sophomores, 8 juniors, and 15 seniors. A local ...

MATH - a total of 50 juniors and seniors were given a mathematics test.the 35 ...

Pre-Calculus-check answers - How many ways can 5 students be chosen from a group...

statistics - Conduct a chi square analysis to determine whether sex and year in ...