A piece of wire 24 ft long is cut into two pieces. One piece is used to form a square, and the remaining piece is used to form a
1 answer:
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Answer:
It has the same domain as the function
Step-by-step explanation:
we have
we know that
The radicand cannot be a negative number
so
Solve for x
Multiply by -1 both sides
The domain of the given function is the interval ----> (-∞,0]
All real numbers less than or equal to 0
The range of the given function is the interval ----> [0,∞)
All real numbers greater than or equal to zero
<u><em>Verify each statement</em></u>
Part 1) It has the same domain as the function
<em>The statement is true</em>
The domain of the function is
the interval ---> (-∞,0]
Part 2) It has the same range as the function
The statement is false
The range of the function is
the interval ---> (-∞,0]
Part 3) It has the same domain as the function
The statement is false
The domain of the function is
the interval ---> [0,∞)
Part 4) It has the same range as the function
The statement is false
The range of the function is
the interval ---> (-∞,0]
Answer:
The 95% confidence interval for the population proportion is (0.1456, 0.2344). This means that we are 95% sure that the true proportion of employed American who say that they would fire their boss if they could is between 0.1456 and 0.2344.
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 population proportion is (0.1456, 0.2344). This means that we are 95% sure that the true proportion of employed American who say that they would fire their boss if they could is between 0.1456 and 0.2344.