Answer:
All but last statement are correct.
Step-by-step explanation:
- <em>If we were to use a 90% confidence level, the confidence interval from the same data would produce an interval wider than the 95% confidence interval.</em>
True. Confidence interval gets wider as the confidence level decreases.
- <em>The sample proportion must lie in the 95% confidence interval. </em>
True. Confidence interval is constructed around sample mean.
- <em>There is a 95% chance that the 95% confidence interval actually contains the population proportion.</em>
True. Constructing 95%. confidence interval for a population proportion using a sample proportion from a random sample means the same as the above statement.
- <em>We don't know if the 95% confidence interval actually does or doesn't contain the population proportion</em>
True. There is 95% chance that confidence interval contains population proportion and 5% chance that it does not.
- <em>The population proportion must lie in the 95% confidence interval</em>
False. There is 95% chance that population proportion lies in the confidence interval.
This answer is vague in whether they want you to add just the length and the width or if they are asking that the perimeter is 96 yards. I will show both.
The length is width - 12. Lets call width x.
Length = x - 12
Width = x
So if it is just the sum of the length and width, it would be x + x -12 = 96
2 x - 12 = 96
2 x = 108
x = 54
Length would be 54 - 12 = 42 yards.
If it was perimeter, the values would be the same except 2(x) + 2(x-12) = 96
2x + 2x -24 = 96
4x = 120
x = 30
Length = 30 - 12 = 18 yards
I hope this helps :-)
Angle B would be equal to angle E
7/4.55 1.538 (i’m rounding that to 1.54) take 1.54 x3 and that gives you your answer ( 4.615 round it to 4.62)