Answer:
The 80% confidence interval for the population proportion of disks which are defective is (0.059, 0.079).
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 .
Suppose a sample of 1067 floppy disks is drawn. Of these disks, 74 were defective.
This means that
80% 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 80% confidence interval for the population proportion of disks which are defective is (0.059, 0.079).
Honestly you can just use Socratic and it’s going to tell you the answer and explain
1. -8x + y = 8b 2. ÷ by 8
3. -x + y over 8 = b
The answer is d, Because terms are separated by signs, i.e multiplication/division.
Answer:
A) A number line with a closed circle on 3 and shading to the right.
Step-by-step explanation:
For the solutions of the function the highest possible x value can be 3 anything higher than that make the inequality false.