The number of pencils is directly proportional to the cost. ... Two values x and y are inversely proportional to each other when their product xy is a constant (always remains the same). This means that whenx increases y will decrease, and vice versa, by an amount such that xyremains the same.
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).
Answer:
<u>$15,000</u> is the amount to spend on marketing in the month of March.
Step-by-step explanation:
Given:
You have a monthly budget percentage of 5% for marketing.
Your projected sales for the month of March are $300,000.
Now, to find the amount spend on marketing:
Rate of marketing = 5%.
Projected sales for the month of March = $300,000.
Now, to get the amount spend on marketing in March:
<u><em>5% of $300,000.</em></u>
Therefore, $15,000 is the amount to spend on marketing in the month of March.