Question

Human beta endorphin (HBE) is a hormone secreted by the pituitary gland under conditions of stress. An exercise physiologist measured the resting (unstressed) blood concentration of HBE in 3 groups of men: 10 who had just entered a physical fitness program, 13 who had been jogging regularly for some time, and 14 sedentary people.

Group	Fitess Entrants	Joggers	Sedentary
Sample Size	10	13	14
Sample Mean	54.15	41.92	48.01
Sample SD	6.17	6.86	8.4

Compute the value of the grand mean, (X^-) Use at least 3 digits to the right of the decimal.

Compute the treatment sum of squares, SSA.

Compute the error sum of squares, SSE.

Compute the total sum of squares, SST.

Enter the degreees of freedom associated with
SSA  
SSE  
SST

Which of the statistical tables should you use?
F-distribution
z-distribution
X2-distribution

What are the degrees of freedom associated with the test statistic?
Numerator df:  
Denominator df:

Calculate the test statistic.

Which interval in the table contains the p-value for the test? (Use the table on the course site and confirm your answer with software.)
p-value ≤ 0.001
0.001 < p-value ≤ 0.01
0.01 < p-value ≤ 0.05
0.05 < p-value ≤ 0.1
0.1 < p-value ≤ 0.25
p-value > 0.25

Answer 1