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]
3 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]3 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
Brandon's wallet slips from his jacket pocket in the mall. By the time he realizes his wallet is missing and reports the loss, a
VikaD [51]

Answer:

$950

Explanation:

Since the total amount of items purchased by the thief is $950, then Brandon has to pay back the amount deducted from his card.

4 0
3 years ago
Lexigraphic Printing Company is considering replacing a machine that has been used in its factory for four years. Relevant data
jek_recluse [69]

Answer:

Lexigraphic Printing Company

1. Differential Analysis as of April 30:

                                                 Old Machine   New Machine    Difference

Annual revenue                              $74,200          $74,200

Annual depreciation (straight-line)    8,900             19,950  

Annual manufacturing

costs, excluding depreciation        23,600              6,900

Annual nonmanufacturing

operating expenses                         6,100                6,100

Total expenses                            $38,600           $32,950

Annual net income                      $35,600           $41,250         $5,650

Net income for 6 six years        $213,600        $247,500       $33,900

2. Other factors that should be considered are:

B. What effect does the federal income tax have on the decision?

C. What opportunities are available for the use of the $90,000 of funds ($119,700 less $29,700 proceeds from the old machine) that are required to purchase the new machine?

E. Are there any improvements in the quality of work turned out by the new machine?

Explanation:

a) Dat and Calculations:

Old Machine

Cost of machine, 10-year life $89,000

Annual depreciation (straight-line) 8,900

Annual manufacturing costs, excluding depreciation 23,600

Annual nonmanufacturing operating expenses 6,100

Annual revenue 74,200

Current estimated selling price of machine 29,700

New Machine

Purchase price of machine, six-year life $119,700

Annual depreciation (straight-line) 19,950

Estimated annual manufacturing costs, excluding depreciation 6,900

Annual nonmanufacturing operating expenses 6,100

Annual revenue 74,200

Differential Analysis as of April 30:

                                                 Old Machine   New Machine    Difference

Annual revenue                              $74,200          $74,200

Annual depreciation (straight-line)    8,900             19,950  

Annual manufacturing

costs, excluding depreciation        23,600              6,900

Annual nonmanufacturing

operating expenses                         6,100                6,100

Total expenses                            $38,600           $32,950

Annual net income                      $35,600           $41,250         $5,650

Net income for 6 six years        $213,600        $247,500       $33,900

4 0
3 years ago
Mary ran into a store dedicated to the newest cat foods offered by her favorite pet food provider. she has so much fun interacti
maks197457 [2]

mary most likely found a pop-up store

8 0
3 years ago
Cindy goes to the lumber yard to buy lumber for a deck that she is building. She tells the salesperson at the lumber yard that s
aivan3 [116]

Answer:

<em>c. Implied warranty of fitness for a particular purpose </em>

Explanation:

The warranty of fitness for a particular purpose is inferred whenever a purchaser depends on the supplier to pick the products to fit a particular query.

For instance, if a customer asks a mechanic to supply winter tires and receives tires that are unfit for use in weather, this warranty is breached.

It is also possible to explicitly revoke this implicit warranty by name, thus moving the threat of unfitness back to the purchaser.

7 0
3 years ago
Two independent situations are described below. Each involves future deductible amounts and/or future taxable amounts produced b
harina [27]

Answer:

       SITUATION                                                                    1                  2

a) Income tax payable currently.                                    $14,000     $30,000

b) Deferred tax asset - balance at year-end.                   $1,800       $4,600

c) Deferred tax asset change dr or (cr) for the year.         $800              $0

d) Deferred tax liability - balance at year-end.                      $0       -$1,800

e) Deferred tax liability change dr or (cr) for the year.          $0         -$800

f) Income tax expense for the year.                              $13,200     $30,800

Explanation:

Note: See the attached excel file for all the calculations of all the answers a to f above.

Download xlsx
5 0
3 years ago
Other questions:
  • The primary advantages of specialization are that employees acquire greater _______ from repetition, they avoid _______ time in
    10·1 answer
  • Question 3
    8·2 answers
  • Adapting your message to the task and audience requires empathy, which means putting yourself in the other person’s shoes. Emp
    8·1 answer
  • If the price of gasoline is relatively high for a long time, consumers are more likely to buy fuel-efficient cars or switch to a
    15·1 answer
  • At the Sol Wave House hotel, located on the beautiful island of Majorca, Spain, a Twitter concierge stays in constant contact wi
    13·1 answer
  • The following options it gives me are
    6·1 answer
  • Flesch Corporation produces and sells two products. In the most recent month, Product C90B had sales of $23,490 and variable exp
    11·1 answer
  • Horten Sporting Goods Corporation makes two types of racquets, tennis and badminton. The company uses the same facility to make
    12·1 answer
  • Find the APR in each of the following cases. EAR Number of Times Compounded APR 15.3% Semiannually 8.7% Monthly 9.4% Weekly 14.9
    8·1 answer
  • Why would a company’s manager be concerned about the quantity of its purchases returns if its suppliers allow unlimited returns?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!