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pav-90 [236]
3 years ago
12

Which of the following is NOT true of confidence interval estimates of the difference between two population proportions?

Business
1 answer:
docker41 [41]3 years ago
6 0

Answer: D. A confidence interval is used to test a claim about two population proportions.

Explanation: Confident interval estimate is a type of estimate computed from statistics of observed data.

The confident interval estimate of the difference between two population proportions will use a standard deviation based on estimated values of the population proportion. The confident interval will be used to estimate the difference in the two population proportions, but it will not be used to test claim about two population proportions because it can not.

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11. (-/1 Points] DETAILS BRECMBC9 5.11.010.
Lisa [10]

Answer:

2190 ; 2560 ;

$778.2

Explanation:

Total worth of gasoline sold = 16003.50

Cost of regular = 3.30

Cost of premium = 3.45

Let :

premium Gallon sold = x

Regular gallon sold = 370 + x

Hence, mathematically;

(3.45*x) + (3.30 * (x + 370)) = 16003.50

3.45x + 3.30x + 1221 = 16003.50

6.75x = 16003.50 - 1221

6.75x = 14782.5

x = 14782.5 / 6.75

x = 2190

Premium Gallon sold = 2190 gallons

Regular gallon sold = 2190 + 370 = 2560 gallons

Profit per regular gallon sold = $0.15

Progit per premium Gallon sold = $0.18

Total profit = (2190 * 0.18) + (2560 * 0.15) = $778.2

7 0
2 years ago
Assume that a company sells customized sweatshirts for $15 per unit. It pays a sales commission of $5 per unit sold. The company
Annette [7]

Answer:

The  The number of sweatshirts the company would need to sell to earn a target profit of $1,710 is closest to <u>570</u> sweatshirts.

Explanation:

This can be calculated as follows:

Selling price per unit = $15

Total cost price per unit = Average unit cost + Sales commission per unit = $7 + $5 = $12

Profit per unit = Selling price per unit - Total cost price per unit = $15 - $12 = $3

Target profit = $1,710

Number of sweatshirts to sell to earn a target profit = Target profit / Profit per unit = $1,710 / 3 = 570

5 0
3 years ago
Now suppose that the supply of new homes put on the market​ dropped, but price still stayed the same at​ $200,000. this could on
GenaCL600 [577]

If demand also dropped.

If supply goes down and demand goes up, the price would rise.

If supply goes down and demand stays the same, the price would still rise.

5 0
3 years ago
A firm is considering two projects. Project Peso requires an initial investment of $100,000. The Internal Rate of Return for Pro
Fofino [41]

Answer:

to accept both the projects i.e. Project Peso and Project Quasi

Explanation:

As we can see in the given case, that the weighted average cost of capital on the projects is 9% while on the other hand, Perso and Quasi both have the internal rate of return 10.6% and 12.6% i.e. above 9% so based on this, the decision that should firm make is to accept both the projects i.e. Project Peso and Project Quasi

The same would be relevant

6 0
3 years ago
During 20--, Rachael Parkins, president of Mathieson Company, was paid a semimonthly salary of $7,700. Compute the amount of FIC
r-ruslan [8.4K]

Answer:

Total FICA tax is $ 9792+ $ 823.60= $ 10,615.6

Explanation:

The FICA tax is 7.65% for employees wages upto 128,000 and 1.45 % in excess of $ 128,000

Suppose the FICA tax rate is 7.65 % and her monthly salary is $ 7,700*2= $15,400

Her yearly salary is $15,400* 12=  $ 184,800 which is above $ 128,000

So the Fica Tax would be = 128,000 * 7.65%= $ 9792

And 1.45 % 0f (184,800- 128,00)$ 56,800= $ 823.60

Total FICA tax is $ 9792+ $ 823.60= $ 10,615.6

6 0
3 years ago
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