: Use the 4 Steps in Problem Solving. Solve the problem using at least two different strategies and show your work for each stra
tegy. You may use additional paper as needed. Problem: A bowling championship has 15 competing teams. If each team will play with each of the other teams exactly once, how many total games will be played?
1 answer:
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Answer: 271
Step-by-step explanation:
The formula we use to find the sample size is given by :-
, where is the two-tailed z-value for significance level of
p = prior estimation of the proportion
E = Margin of error.
If prior estimation of the proportion is unknown, then we take p= 0.5 , the formula becomes
Given : Margin of error : E= 0.05
Confidence level = 90%
Significance level
Using z-value table , Two-tailed z-value for significance level of
Then, the required sample size would be :
Simplify,
Hence, the required minimum sample size =271
Answer:
- option D .....11 ✔
Step-by-step explanation:
- we put the value of m and n
- choose options D
Hope it's help :D