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wel
4 years ago
13

In a simple random sample of 800 people age 20 and over in a certain country, the proportion with a certain disease was found to

be 0.165 (or 16.5%). Complete parts (a) through (c) below. a. What is the standard error of the estimate of the proportion of all people in the country age 20 and over with the disease? (Round to four decimal places as needed.) b. Find the margin of error, using a 95% confidence level, for estimating this proportion. m=______(round to three decimal places as? needed.)c. Report the 95% confidence interval for the proportion of all Americans age 20 and over with diabetes.

Business
1 answer:
anygoal [31]4 years ago
6 0

Answer and Explanation:

Please find attachment

I'm calculating standard error we used the formula standard deviation/√number of samples. Standard deviation is not known and so it was first calculated

Margin of error and confidence intervals were also calculated using their formulas

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What is the earliest and latest patent found on a spork design
bezimeni [28]

the earliest is the year the year 2018 and the first time one was invented was 1804! crazy huh it is really funny tho... hope this helps!


7 0
3 years ago
Gut Bombs sandwich shop pays 10 workers $2,500 a month and spends $5000 on food. Usually the shop sells 3,500 sandwiches per mon
MrRa [10]

Answer:

The average product for the 10 workers is 350 sandwiches per month.

Explanation:

Average product is given by total output divided by total labor used

Total output per month = 3500 sandwiches

Total labor used per month = 10 workers

Average product = 3500 ÷ 10 = 350

Average product for the 10 workers is 350 sandwiches/month

6 0
4 years ago
Suppose the price of barley increases by 16.53%. If breweries buy 3.28% less barley after the price increase, the total revenue
son4ous [18]

Answer:

The total revenue for barley producers will increase because the price effect is greater than the quantity effect.

Correct option is D.  increase; price; quantity

Explanation:

Price effect (which is the impact that a change has on prices) in the scenario above is greater than Quantity effect (a reduction in commodities sold after an increase in price).

Since breweries still buy below the percentage of the Price effect, the revenue of barley sellers will continue to increase.

However, the revenue will start to decrease when the quantity effect exceeds the price effect.

6 0
3 years ago
Lenders consider loans made with a down payment to have less risk because the down payment gives the borrower some equity, or ow
antiseptic1488 [7]

Answer:

When we invest ourselves into a project or a team, its our expertise and skills that we put in that project etc, works as Downpayment for it. When it comes to relation other than professional relationship like friendship then its our loyalty, behavior and understanding with that person that makes him/her reliant on us.

Explanation:

7 0
3 years ago
Read 2 more answers
Fixed vs Variable cost preference. Bates operates a kiosk at a local mall, selling duck calls for $30 each. The variable cost to
GuDViN [60]

Answer:

Option 2 should be selected

Explanation:

Using a rational approach which option most benefit and have a minimum cost. We will use the break-even level here to decide which option should be selected.

Option 1

Price per call = $30

Variable cost per call = $18

Contribution = Sales  - Variable cost = $30 - $18 = $12

Fixed Cost = $15,000

Break-even point = Fixed cost / Contribution per call = $15,000 / $12 = 1,250 calls

Option 2

Price per call = $30

Variable cost per call = $18 + ( $30 x 10% ) = $18 + $3 = $21

Contribution = Sales  - Variable cost = $30 - $21 = $9

Fixed Cost = $9,000

Break-even point = Fixed cost / Contribution per call = $9,000 / $9 = 1,000 calls

Difference  = 1,250 calls - 1,000 calls = 250 calls

Option 2  is better option because it take 250 less calls to reach at break-even in the month. It should be selected.

8 0
3 years ago
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