Answer:
The confidence interval is 95% and the significance level is and
and the critical value would be:
And the margin of error would be:
Step-by-step explanation:
We have the following info given:
the sample size selected
the number of people who lease a car
the estimated proportion of people who lease a car
The margin of error is given by:
The confidence interval is 95% and the significance level is and
and the critical value would be:
And the margin of error would be:
Answer:
The fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. The roots are .
Step-by-step explanation:
Consider the provided information.
Algebra's fundamental theorem states that: Every polynomial equation of degree n with complex coefficients has n roots in the complex numbers.
Now consider the provided equation.
The degree of the polynomial equation is 2, therefore according to Algebra's fundamental theorem the equation have two complex roots.
Now find the root of the equation.
For the quadratic equation of the form the solutions are:
Substitute in above formula.
Hence, the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. The roots are .
