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GuDViN [60]
3 years ago
12

Nine subjects, 87 to 96 years old, were given 8 weeks of progressive resistance weight training. strength before and after train

ing for each individual was measured as maximum weight (in kilograms) lifted by left knee extension:

Business
1 answer:
Serga [27]3 years ago
4 0

Answer:

11.611 +/- 3.013

Explanation:

3     3.5     4       6        7          8        8.5        12.5       15

7      17      19      12       19       22       28         20         28

difference

4      13.5    15     6       12        14        19.5        7.5         13

mean = 11.611

the standard deviation ⇒ 7.611² + 1.889² + 3.389² + 5.611² + 0.389² + 2.389² - 7.889² + 4.111² + 1.389² = 57.927 + 3.568 + 11.485 + 31.483 + 0.151 + 5.707 + 62.236 + 16.9 + 1.929 = 191.386/9 = √21.265 = 4.611

standard deviation = 4.611  1.918

confidence interval = mean +/- [(standard deviation/√9) x 1.96]

11.611 + [(4.611/3) x 1.96] = 11.611 + 3.013

11.611 - [(4.611/3) x 1.96] = 11.611 - 3.013

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Markets may have difficulty providing the proper quantity of a public good because Group of answer choices individuals will tend
Mariulka [41]

Answer:

individuals will tend to become free riders, and private firms will have difficulty generating enough revenue to produce an efficient quantity of the good.

Explanation:

A public good is a good that is non excludable and non rivalrous. Everyone has assess to the statue and because one person is enjoying the view of the statue does not means another person cannot enjoy the view of the statue

The free rider problem is a form of market failure. It occurs when people benefit from a good or service of communal nature and do not pay to enjoy these services.

Because a public good is non-excludable, the problem of free rider increases so private firms would be unable to generate adequate revenue

3 0
3 years ago
What gives rise to the problem of scarcity​
dem82 [27]

Answer:

Explanation:

Often scarcity is caused by a combination of demand and supply induced effects. A rise in demand, e.g. due to rising population causes overcrowding and population migration to other fragile ecological areas

5 0
3 years ago
Indicate how each of the following transactions affects U.S. exports, imports, and net exports.
Oxana [17]

Answer:

 export               import                net export  

1. increases         unchanged         increases

2. unchanged       increases             decreases

3.  unchanged       increases             decreases

4. unchanged       increases             decreases

5. increases         unchanged         increases

Explanation:

export would comprise of goods and services produced in the US that are been sold to foreign countries

Import would comprise of foreign produced goods and services that are been sold in the US

Net export would increase when export occurs and decrease when import occurs

Net export = exports – imports

When the French historian visits the US museum and the European family visits Disney,  they are enjoying US services, thus export increases and net export increases

The purchase of books from Cambridge in UK, Panasonic camera and the visit to Japan constitutes import. These increases import and reduces net export

7 0
3 years ago
When the supply curve in the Sudanese slave trade is perfectly ________, every slave bought by the redeemers results in/is _____
Mamont248 [21]

Answer:

B) inelastic; one less slave

Explanation:

Since in the question it is given that the supply curve in the Sudanese slave trade should be perfectly inelastic and every slave purchased by redeemers that determines that it should be one less slave held in captivity

Therefore in the given case it should be inelastic and one less slave

hence, the correct option is B

Also inelastic means less than one

3 0
3 years ago
Jefferson's recently paid an annual dividend of $1.31 per share. The dividend is expected to decrease by 4% each year. How much
Vlad [161]

Answer:

$6.29

Explanation:

Dividend is $1.31 per share

Decreased by 4%

Required return is 16%

Therefore:

Price = [$1.31 × (1 - .04)]/[.16 - (-.04)] = $6.29

8 0
3 years ago
Read 2 more answers
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