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OlgaM077 [116]
3 years ago
13

In the largest clinical trial ever​ conducted, 401,974 children were randomly assigned to two groups. the treatment group consis

ted of​ 201,229 children given the salk vaccine for​ polio, and the other​ 200,745 children were given a placebo. among those in the treatment​ group, 33 developed​ polio, and among those in the placebo​ group, 115 developed polio. if we want to use the methods for testing a claim about two population proportions to test the claim that the rate of polio is less for children given the salk​ vaccine, are the requirements for a hypothesis test​ satisfied? explain.
Business
1 answer:
Pachacha [2.7K]3 years ago
4 0
<span>The requirements are satisfied; the samples are simple random samples that are independent, and for each of the two groups, the number of successes is at least 5 and the number of failures is at least 5.</span>
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La Famiglia Pizzeria provided the following information for the month of October:
Dennis_Churaev [7]

Answer:

a

The cash receipts in October are as follows:

Cash Sales:

85% of $157,000

= 0.85 * $157,000

= $133,450

Payments on September credit sales:

$181,500 * 28% * (80 - 75)%

= $181,500 *0.28 * 15%

= $181,500 * 0.28 * 0.15

= $7,623

Payments on October credit sales** 16,485

$157,000 * 70% * (85 - 70)%

$157,000 * 0.7 * 15%

= $157,000 * 0.7 * 0.15

= $16,485

Total cash expected = $133,450 + $7,623 + $16,485 = $157,558

b.

Payments for food purchases is as follows:

September

($130,000 × 0.75) = $97,500

October

($116,000 × 0.25) = 29,000

Total cash needed for June = $97,500 + $29,000 = $126,500

c.

The inventory is as follows:

Beginning balance $2,147

Cash receipts $157,558

Cash available $159,705

The following items will be subtracted:

Food purchases $126,500

Shareholder's Dividend $6,000

Workers’ wages in September $730 ---- 10% of $7,300

Workers’ wages re: October $6,570 --- 90% of $7,300

Utilities $5,590

Insurance $1,200

Rent $4,100

Total disbursements $150,690

Ending balance

= $159,705 - $150,690

= $9,015

8 0
3 years ago
thinking strategically about industry and competitive conditions in a given industry involves evaluating such considerations as
oksian1 [2.3K]

Answer:

E. how often sellers alter their prices, how sensitive buyers are to price differences among sellers, whether the item being purchased is a good or a service, and whether buyers buy frequently or infrequently.

Explanation:

Options are <em>"A. cultural, lifestyle, and demographic changes, B. the birth of new industries, new knowledge, and disruptive technologies, C. weather, climate change, and water shortages, D. interest rates, exchange rates, unemployment rates, inflation rates, and economic growth, E. how often sellers alter their prices, how sensitive buyers are to price differences among sellers, whether the item being purchased is a good or a service, and whether buyers buy frequently or infrequently." </em>

Thinking strategically about industry and competitive conditions in a given industry involves evaluating such considerations as <u><em>how often sellers alter their prices, how sensitive buyers are to price differences among sellers, whether the item being purchased is a good or a service, and whether buyers buy frequently or infrequently.</em></u>

The strategy decision making about the industry and competitive conditions involve evaluating the prices, buyer sensitivity to the prices, serviceability & frequency.

7 0
3 years ago
Explain the reasons why more efficient keyboards were not able to replace the QWERTY keyboard and what principle this illustrate
ELEN [110]

Answer:

so that people don type to fast again like the 20th centruy people

Explanation:

3 0
3 years ago
Explain how the basic economic problems are solved under capitalism?​
Brums [2.3K]

Answer:

Under capitalistic economy, allocation of various resources takes place with the help of market mechanism. Price of various goods and services including the price of factors of production are determined with help of the forces of demand and supply. Free price mechanism helps producers to decide what to produce.

The goods which are more in demand and on which consumers can afford to spend more, are produced in larger quantity than those goods or services which have lower demand. The price of various factors of production including technology helps to decide production techniques or methods of production. Rational producer intends to use those factors or techniques which has relatively lower price in the market.

Factor earnings received by the employers of factors of production decides spending capacity of the people. This helps producers to identify the consumers for whom goods could be produced in larger or smaller quantities. Price mechanism works well only if competition exists and natural flow of demand and supply of goods is not disturbed artificially.

Explanation:

7 0
2 years ago
In preparing its August 31, 2010 bank reconciliation, Adel Corp. has available the following information:
saul85 [17]

Answer: C $22,100

Explanation: Bank Reconciliation

8/31/10 Bank Balance $21,650

Add:

8/31/10 Deposit in transit. $3,900

Less:

8/31/10 Outstanding Chq. $2,750

8/30/10 Rtd Chq. $600

8/31/10 Bank Charges. $100

Cash book balance $22,100

5 0
3 years ago
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