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maria [59]
3 years ago
13

The buyer for an electronics store wants to estimate the proportion of defective wireless game controllers in a shipment of 5,00

0 controllers from the store’s primary supplier. The shipment consists of 200 boxes each containing 25 controllers. The buyer numbers the boxes from 1 to 200 and randomly selects six numbers in that range. She then opens the six boxes with the corresponding numbers, examines randomly chosen 10 controllers in each of these boxes, and determines the proportion of the 60 controllers that are defective. What type of sample is this?
(a) Simple random sample
(b) Nonrandom sample
(c) Cluster sample
(d) Stratified sample
Business
1 answer:
Mila [183]3 years ago
7 0

Answer: (C) Cluster sample

Explanation:

The cluster sampling is one of the sampling method type that is used for analyzing the given data or information from the given sampling cluster. In the cluster sampling method, the researches basically dividing the statistical population into the individual or separate group for analyzing the data.  

According to the given scenario, the cluster sample is one of the type of sample which us use for the given estimated problem.

The Cluster sampling is also refers as the one stage sampling process if the each element in the cluster are sampled together.

Therefore, Option (C) is correct.  

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We are evaluating a project that costs $644,000, has an eight-year life, and has no salvage value. Assume that depreciation is s
AleksandrR [38]

Solution :

a).

Particulars                                                Details

Selling price per unit                                 37

Less : variable cost per unit                     -21

Margin per unit                                           16

No. of units sold per unit                       70,000

Gross margin                                        11,20,000

Less : fixed cost                                     - 7,25,000

Profit before depreciation and tax       3,95,000

Less : depreciation                                -80,500

Profit before tax                                     3,14,500

Less : Tax                                               -1,10,075

Net profit per year                                 2,04,425

Project Cost                                           6,44,000

Accounting breakeven point in years     3.15

b).

Calculating the base Cash - Cash flow and NPV

Particulars                                                       Amount

Net profit per year                                        2,04,425

Add : depreciation                                         80,500

Base Cash cashflow                                     2,84,925

Required rate of return                                    15%

Present value of base cash cash flow        12,78,550

received in 8 years.

Project cost                                                  -6,44,000

NPV                                                               6,34,550

The present value of base cash cash flow received in 8 years is calculated as Present value of annuity received at the end of each year $ 2,84,925 at the rate of interest 15% for a period of 8 years.

The sensitivity of the NPV to 500 units decrease in projected sales :

Particulars                                                          Details

Selling price per unit                                            37

Less : variable cost per unit                                -21

Margin per unit                                                     16

Number of units sold per year                          69,500

Gross margin                                                      11,12,000

Less : fixed cost                                                -7,25,000

Profit before depreciation and tax                   3,87,000

Less : depreciation                                            -80,500

Profit before tax                                                 3,06,500

Less : tax                                                            -1,07,275

Net profit per year                                             1,99,225

Add : depreciation                                              80,500

Base Cash cashflow                                          2,79,725

Required rate of return                                         15%

Present value of base cash cash flow              12,55,216

received in 8 years.

Project cost                                                    -6,44,000

NPV                                                                6,11,216

Original NPV                                                  6,34,550

Sensitive NPV                                                  -23,334

c).

Particulars                                                              Details

Selling price per unit                                               37

Less : variable cost per unit                                   -20

Margin per unit                                                        17

No. of units sold per year                                     70,000

Gross Margin                                                         11,90,000

Less : fixed cost                                                     -7,25,000

Profit before depreciation and tax                       4,65,000

Less : Depreciation                                                -80,500

Profit before tax                                                     3,84,500

Less : tax                                                                -1,34,575

Net profit per year                                                  2,49925

Add : depreciation                                                   80,500

Operating cash flow                                               3,30,425

Original operating cashflow                                   2,84,925

Sensitivity of OCF                                                      45,500

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Suppose there are two individuals, Casey and Rick, who live in a very simplified world where only two goods are produced and con
Maksim231197 [3]

Answer:

Casey's opportunity cost of producing 1 kg of potatoes is 5 kg of steak.

Casey's opportunity cost of producing 1 kg of steak is 0.2 kg of potatoes.

Rick's opportunity cost of producing 1 kg of potatoes is 3 kg of steak.

Rick's opportunity cost of producing 1 kg of steak is 0.33 kg of potatoes.

Casey should produce steak while Rick should produce potatoes, since Rick has a comparative advantage in producing potatoes (lower opportunity cost) and Casey has a comparative advantage in producing steak.

As long as the price of steak per kilogram of potatoes is less than 5 kg of steak and more than 3 kg of steak, then both would win. In order for both of them to win is a similarly proportional way, the exchange price should be 4 kg of steak per kg of potatoes.

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