Answer:
The confidence level of the study is 99.9%
The confidence level is 99.9% of the margin error is 8%
Step-by-step explanation:
<u>Explanation</u>:-
Candy has observed 250 sports cars
The sample size 'n' = 250
Sample proportion 'p' = 15% = 0.15
The margin of error = 8% = 0.08
<em>The margin of error is determined by </em><em> = </em><em />
<em> </em><em />
<u>Conclusion</u>:-
The z- score of 99.9% level of significance = 3.54 for two tailed test
<em>Hence the confidence level is 99.9% of the margin error is 8%.</em>
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I think that it’s 24 as I can see by the form it’s a Microsoft teams test form lol
Answer:
11.2 inches.
Step-by-step explanation:
Applying the tangent/secant theorem:
9^2 = 5(y + 5)
5y + 25 = 81
5y = 56
y = 11.2 in.