A nursing school professor is interested in determining how her college students compare to the national average when it comes to the Final Practicum Exam. The exam has a µ = 100 and σ = 20. There has been no evidence to suggest whether those seniors score better or worse than the national average and she is curious as to how her class (N=17) compares.
Female Class Bench Ability (lbs.)
1 |
130 |
2 |
100 |
3 |
99 |
4 |
114 |
5 |
130 |
6 |
97 |
7 |
114 |
8 |
135 |
9 |
128 |
10 |
128 |
11 |
116 |
12 |
141 |
13 |
113 |
14 |
116 |
Write the null and alternative hypothesis in statistical form:
Determine the mean for the sample:
Apply the z-test formula
What is your alpha level set to? α
Determine the critical value(s) (Zcrit)
Label the critical value(s) and indicate the position of the Zobt on the distribution
Write the z result in the correct form:
