SOLUTION: I NEED HELP IN STATISTICS. PLEASE HELP. THANK YOU SO MUCH. At mississippi University, a sample of 18 senior accounting majors showed a mean cumulative GPA of 3.35 with a standar

Question 187153: I NEED HELP IN STATISTICS. PLEASE HELP. THANK YOU SO MUCH.
At mississippi University, a sample of 18 senior accounting majors showed a mean cumulative GPA of 3.35 with a standard deviation of 0.25. At α = .05 in a two-tailed test, does this differ significantly from 3.25 (the mean GPA for all business school seniors at the university)? Explain your decision on the null hypothesis

Hypothesis Test: Mean vs. Hypothesized Value

3.2500 hypothesized value
3.3500 mean problem4
0.2500 std. dev.
0.0589 std. error
18 n
17 df

1.70 t
.1079 p-value (two-tailed)

3.2257 confidence interval 95.% lower
3.4743 confidence interval 95.% upper
0.1243 half-width

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
At mississippi University, a sample of 18 senior accounting majors showed a mean cumulative GPA of 3.35 with a standard deviation of 0.25. At α = .05 in a two-tailed test, does this differ significantly from 3.25 (the mean GPA for all business school seniors at the university)? Explain your decision on the null hypothesis
Hypothesis Test: Mean vs. Hypothesized Value
3.2500 hypothesized value
3.3500 mean problem4
0.2500 std. dev.
0.0589 std. error
18 n
17 df
1.70 t
.1079 p-value (two-tailed)
3.2257 confidence interval 95.% lower
3.4743 confidence interval 95.% upper
0.1243 half-width
----------------------------------
Ho: u = 3.25
Ha: u is not equal to 3.25 (2-tailed test)
------------
Conclusion: Since the p-value is greater than alpha = 5%,
Fail to Reject Ho.
The test does not provide evidence to reject the belief that
the GPA is 3.25
-------------------------------
Cheers,
Stan H.

RELATED QUESTIONS
HELP!!! I am completely lost in statistics!! Any assistance is greatly appreciated! I (answered by stanbon)

Explain in your own words how to evaluate a polynomial for a given value of the variable. (answered by solver91311)

At Oxnard University, a sample of 25 senior accounting majors showed a mean cumulative... (answered by stanbon)

Chapter 5: A Survey of Probability Concepts ISBN : 0072868244 I respectfully seek... (answered by stanbon)

Dear Maths expert, Please I need some help with the following mini-case: Below are... (answered by funmath)

problem 1) Ninety students will graduate from Lima Shawnee High School this spring. Of... (answered by stanbon)

Please help me with my project... A regular pentagon is inscribed in a circle of whose... (answered by stanbon)

At Oxnard University, a sample of 18 senior accounting majors showed a mean cumulative... (answered by stanbon)

Suppose 20% of business majors major in accounting. You take a random sample of 2... (answered by stanbon)