Answer:
The 95% confidence interval for the proportion of college students who get 8 or more hours of sleep per night is (0.133, 0.161).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
For this problem, we have that:
95% confidence level
So , z is the value of Z that has a pvalue of , so .
The lower limit of this interval is:
The upper limit of this interval is:
The 95% confidence interval for the proportion of college students who get 8 or more hours of sleep per night is (0.133, 0.161).
Answer:
Soup B has more sodium per cup.
Step-by-step explanation:
If we're doing sodium per cup, then we have to divide 5 by 12, and 8 by 13.
5÷12=~0.4 grams
8÷13=~0.6 grams
0.6>0.4
So B has more sodium per cup.
The length of the side would be sqrt(77) = 8.7749.....
This can be classified as two answers:
A and D
This is a real number
It is also an irrational number because it can’t we written as a simple fraction.
Answer:
All angles equal = all sides equal = equilateral. , Two angles equal = two sides equal = isosceles. , All angles different = all sides different = scalene.
An isosceles or scalene triangle may be right-angled or obtuse-angled if one of its angles is a right angle or obtuse angle (respectively).
Step-by-step explanation: