Using the t-distribution, the 95% confidence interval for the average number of hours of sleep for working college students is between 6.03 and 6.97 hours.
<h3>What is a t-distribution confidence interval?</h3>
The confidence interval is:
In which:
- is the sample mean.
- s is the standard deviation for the sample.
For this problem, the parameters are given as follows:
Hence the bounds of the interval are:
The 95% confidence interval for the average number of hours of sleep for working college students is between 6.03 and 6.97 hours.
More can be learned about the t-distribution at brainly.com/question/16162795
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Answer:
The correct option is;
A. $76.50
Step-by-step explanation:
To solve the question, we note the formula for simple interest = Principal × Rate × Time/100
That is
Where:
P = Principal Amount = $500.00
R = Interest Rate = 3.4%
T = Time period = 3 Years
Therefore,
For the second account, we have
P = Principal Amount = $500.00
R = Interest Rate = 3.4/2% = 1.7 %
T = Time period = 3 Years
Therefore,
Therefore, the total interest she have earned in three years is $51 + $25.5 = $76.5
Answer:
2x+3z
Step-by-step explanation:
Answer:
Step-by-step explanation:
If , then and are alternate interior angles.
This means that line segment AC is a transversal.
This implies that line segment AD is parallel to line segment BC.
The second choice is the correct answer.