1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sergeeva-Olga [200]
4 years ago
9

Surgery U.S. insurers’ costs for knee replacement surgery range from $17,627 to $25,462. Estimate the population variance (stand

ard deviation) in cost with 98% confidence based on a random sample of 10 persons who have had this surgery. The retail costs (for uninsured persons) for the same procedure range from $40,640 to $58,702. Estimate the population variance and standard deviation in cost with 98% confidence based on a sample of 10 persons, and compare your two intervals.
Business
1 answer:
egoroff_w [7]4 years ago
7 0

Answer:

Insured persons:

Population sd = $4,391.4

Population variance = 19,284,393.96 square dollars

Uninsured persons:

Population sd = $10,123.5

Population variance = 102,485,252.3 square dollars

The cost interval for insured persons is less than that of uninsured persons.

Explanation:

Insured persons:

98% confidence interval is ($17,627, $25,462)

Lower limit = $17,627

Upper limit = $25,462

Margin of error (E) = (upper limit - lower limit) ÷ 2 = (25,462 - 17,627) ÷ 2 = 7,835 ÷ 2 = $3917.5

n = 10

degree of freedom = n-1 = 10-1 = 9

confidence level (C) = 98% = 0.98

significance level = 1 - C = 1 - 0.98 = 0.02 = 2%

critical value (t) corresponding to 9 degrees of freedom and 2% significance level is 2.821

Population sd = E×√n/t = 3917.5×√10/2.821 = $4391.4

Population variance = (population sd)^2 = ($4391.4)^2 = 19,284,393.96 square dollars

Uninsured persons:

98% confidence interval is ($40,640, $58,702)

Lower limit = $40,640

Upper limit = $58,702

Margin of error (E) = (58,702 - 40,640) ÷ 2 = 18,062/2 = $9,031

n = 10

degree of freedom = n-1 = 10-1 = 9

significance level = 2%

critical value (t) = 2.821

Population sd = E×√n/t = 9,031×√10/2.821 = $10,123.5

Population variance = ($10,123.5)^2 = 102,485,252.3 square dollars.

The cost interval for insured persons is less than than that of uninsured persons.

You might be interested in
Seema, a creative director at a marketing agency, notices that her team members often perform better while working as a team tha
Irina18 [472]

Answer:

Social Facilitation.

Explanation:

Social facilitation is defined as the improvement in your performance when working with other people than alone.

So How does it Happen?

The theory is that when other's are around, the "Arousal" (or the increase in motivation) is increased and this creates stronger and improved responses from us towards work. (responses with the greatest habit strength)

7 0
3 years ago
Industry value chains Multiple choice question. generally have little effect on the company's cost competitiveness and customer
uysha [10]

Answer:

include both suppliers and forward channel partners.

Explanation:

An industry value chain can be defined as a physical representation of all of the activities and processes undertaken by a company or business firm for the manufacturing of goods and services, especially starting with the purchase of raw materials, manufacturing of finished goods and then ending with the delivery of the finished goods (products) to the market and consumers through a supply chain.

This ultimately implies that, industry value chains include both suppliers and forward channel partners.

In conclusion, an industry value chain should comprise of the margins of suppliers, value-creating activities and processes, costs, and forward channel partners.

6 0
3 years ago
Collier/Evans defines servicescape as "all the physical evidence a customer might use to form an impression."
Slav-nsk [51]

Answer:

Walmart

Explanation:

The serviescape of a business includes the business appereance, layout, structure, signage, and equipment.

Walmart is a retail superstore that specializes in cheap consumer goods. The layout of the Walmart, is accordingly, spacious in order to accommodate as many products as possible.

The colors blue, yellow and white dominate the sings in the store, because those are the colors of the corporate brand. In the ailes, prices are written with very large fonts so that any customer can easily read them. This has to do with the fact that Walmart has established itself as a cheap option.

The greeters at Walmart are part of the corporate culture, but also a means to prevent shoplifting.

7 0
3 years ago
Rodriguez Corporation issues 10,000 shares of its common stock for $196,400 cash on February 20. Prepare journal entries to reco
emmainna [20.7K]
I’m not going to be able to get my homework homework but I’m not gonna be going back to school
3 0
3 years ago
Suppose that two Japanese companies, Hitachi and Toshiba, are the sole producers (i.e., duopolists) of a microprocessor chip use
Dima020 [189]

Answer: Please refer to Explanation

Explanation:

a) When both Hitachi and Toshiba engage in a limited campaign, they both earn $11 million.

If both engage in an extensive campaign they both earn $8 million.

However, if one firm engages in an extensive campaign and the other firm engages in a limited one, the firm engaging in a limited campaign earns $4 million while the one engaging in an extensive campaign earns $16 million.

I have attached a photo to show the payoff matrix as a table.

b) In the absence of a binding and enforceable agreement, that is to say that if both firms are not colluding, Hitachi's dominant strategy would be to engage in an EXTENSIVE PROMOTIONAL CAMPAIGN.

A Firm's dominant strategy in absence of an agreement is that strategy that a firm can go on and make a maximum amount of profit regardless of what the other firm does.

Should Hitachi engage in an Extensive Campaign, they will make $16 million in quarterly profit if Toshiba engages in a Limited Campaign. Should Toshiba also decide to engage in an Extensive Campaign, then Hitachi makes a profit of $8 million. This is therefore their best alternative as opposed to embarking on a limited Campaign where there is a chance that they will make $4 million.

With the Extensive Campaign, Hitachi's Minimum Payoff is $8 million.

c) The game is the same for both players so the best option for Hitachi, is the best option for Toshiba as well. This means that Toshiba's dominant Strategy is an EXTENSIVE PROMOTIONAL CAMPAIGN and their minimum payoff is $8 million as well.

3 0
3 years ago
Other questions:
  • David's gross pay was $450, and his total deductions were $49. What is his net pay?
    12·2 answers
  • After writing a check for 172, your account is overdrawn by $31. How much money did you have in the account before you wrote the
    8·1 answer
  • ​(Yield to​ maturity) A​ bond's market price is ​$900. It has a ​$1 comma 0001,000 par​ value, will mature in 1414 ​years, and h
    14·1 answer
  • High levels of inventory hide problems within a production system. Some of the problems that high inventory hide are quality pro
    5·1 answer
  • Which decision-making model would you use when your goals are unclear, there is time pressure, and you have experience with the
    6·1 answer
  • Merle Industries had been selling its product for $24 per unit, but recently lowered the selling price to $17 per unit. The comp
    5·1 answer
  • Windsor Company reports the following financial information before adjustments. Dr. Cr. Accounts Receivable $145,600 Allowance f
    12·1 answer
  • You had a part time job that paid you $950 in one tax year. Do you have to file a
    11·1 answer
  • Cawley Company makes three models of tasers. Information on the three products
    7·1 answer
  • The strength of the economy of singapore is based largely on its lack of corruption and generous government support for new busi
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!