Answer:
The answer is "
".
Step-by-step explanation:
Calculating the critical value:
Freedom Degree= 7.
The significance level, 
Using excel function the critical value:

When
of the confidence intervals for the difference of means:
B. That is the correct answer because h(14) = 63 when you divide it by 3
Answer:
All pair COMBINATION are supplementary (Opposite)
Step-by-step explanation:
According to theorem about inscribed quadrilateral
- The opposite interior angles of an inscribed quadrilateral are supplementary .
- I.e there sum is equal to 180°
<O+<Q=180
<P+<R=180