Answer:
a) 
And if we convert this interval into % we got (47.615%, 58.385%)
b) For this case since the lower value for the confidence interval is a value lower than 0.5 (50%) we don't have enough evidence to conclude at 10% of significance than most students at PCC own a car
Step-by-step explanation:
We can begin calculating the best estimator for the true proportion of students at PCC who own a car:
Part a
The confidence level is 95% , and the significance level would be given by 
and 
. And the critical values would be given by:
The confidence interval for the true proportion is given by the following formula:
Replacing the info given we got:
And if we convert this interval into % we got (47.615%, 58.385%)
Part b
For this case since the lower value for the confidence interval is a value lower than 0.5 (50%) we don't have enough evidence to conclude at 10% of significance than most students at PCC own a car
Not all triangles have right angles. A triangle is simply a closed figure with three sides and three angles, the sum of the degrees of which add up to 180°.
For instance, an equilateral triangle will will have all three angles equal to each other (60°, 60°, 60<span>°).
Some triangles may have right angles (90</span><span>°), but not all do.
Hope that helped =)</span>
Answer:
6). unknown side is 6.23m
7). angle is 26.58 degrees
Step-by-step explanation:
you must use the Pythagoras theorem formula to find the unknown side if you have only two sides
For the 3 days he ran a total of : 3 * 900 = 2700 meters.
1000 meters = 1 kilometers
2700 meters = 2700 / 1000 = 2.7 kilometers.
Between last week and this week, Bill ran a total of 6 kilometers.
How far he ran this week = 6 - 2.7 = 3.3 kilometers.
Option C.
B
The formula for circumference is
d, or Pi times diameter
