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Alinara [238K]
3 years ago
5

A sample of 51 elements is selected to estimate a 95% confidence interval for the variance of the population. The chi-square val

ues to be used for this interval estimation are
a. -1.96 and 1.96
b. 32.357 and 71.420
c, 34.764 and 67.505
d. 12.8786 and 46.9630

Business
1 answer:
lorasvet [3.4K]3 years ago
5 0

Answer:

Correct option: (b) 32.357 and 71.420

Explanation:

The confidence interval for population variance <em>σ</em>² is:

\frac{(n-1)s^{2}}{\chi^{2}_{\alpha/2, (n-1) }}\leq  \sigma^{2}\leq \frac{(n-1)s^{2}}{\chi^{2}_{(1-\alpha/2), (n-1) }}

Given:

n=51\\\alpha =1-0.95=0.05

Compute the critical values of chi-square as follows:

\chi^{2}_{\alpha/2, (n-1)}=\chi^{2}_{0.025,50}=71.42

\chi^{2}_{(1-\alpha/2), (n-1)}=\chi^{2}_{0.975,50}=32.36

Use the chi-square table for the critical value.

Thus, the critical values are 32.36 and 71.42.

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X-treme Vitamin Company is considering two investments, both of which cost $22,000. The cash flows are as follows: Year Project
olga2289 [7]

Answer:

0.88 year and 1 year

Explanation:

The computation of the payback period for Payback period for Project A and Project B is shown below:

Payback period = Initial investment ÷ Net cash flow

For Project A

Initial investment = $22,000

Year 1 = $25,000

Since the initial investment is less than the annual cash flows so the payback period is

= 0 years + ($22,000 ÷ $25,000)

= 0.88 years

For Project B

Initial investment = $22,000

Year 1 = $22,000

So, the payback period is

= $22,000 ÷ $22,000

= 1 year

4 0
4 years ago
Assume that a bank receives a cash deposit of $9,000 from a customer. What is the immediate impact of this transaction on the mo
mariarad [96]

Answer:

the money multiplier = 1 / reserve ratio

in this case, the reserve ratio is 10% (required) + 10% (voluntary) = 20%, so the money multiplier = 1/20% = 5

What is the immediate impact of this transaction on the money supply?

  • None, since the money supply doesn't change. When a customer deposits money in a bank, the money does not increase, only its composition changes.

The maximum amount by which this bank will increase its loans from the transaction in part (a)

  • the bank will be able to loan ⇒ total deposit x (1 - reserve ratio) = $9,000 x (1 - 20%) = $7,200

The maximum increase in the money supply that will be generated from the transaction in part

  • since the banks started to "create" money by lending the money, the money supply will increase by ⇒ total deposit x (money multiplier - 1) = $9,000 x 4 = $36,000

Assume that the government increases spending by $9,000, which is financed by a sale of bonds to the central bank. Indicate what will happen to the money supply.

  • The money supply will increase.

Explain what will happen to the money demand.

  • The money demand will also increase because aggregate demand and income will increase. Aggregate demand will increase by ⇒ $9,000 x government multiplier. The government multiplier = 1 / MPS.
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4 years ago
A corporation ran an ad which showed environmental experts praising its social initiatives. The ad encourage readers to visit it
slamgirl [31]

Answer:

institutional copy.

Explanation:

In the scenario described above, the institutional copy style was used, which can be defined as a type of advertisement whose objective is not to sell a product or service, but rather to promote the selling company through its policies, philosophies and objectives, with the objective of strengthening and creating its reputation so that customers are aware of their values ​​and reputation, generating recognition and prestige.

This is what the company analyzed in the above question did by running an ad that shows environmental experts praising its social practices and encouraging readers to access its website and learn about its positive environmental practices

7 0
4 years ago
On average, how many years does it take to complete an associate's degree?
bonufazy [111]
I think it’s 4 tell me if I’m wrong
7 0
3 years ago
Explains how elasticity and incentives work together. Write them in two to three sentences
IgorLugansk [536]

An elastic good, such as a game, is more likely to respond to incentives.

Explanation:

In order that elastic products can react to rewards, elasticity and motivation function together.

The calculation of how a complex economy responds to a transition is elastic. In different quantities, elasticity reacts more than any other factor.

Incentive is called something that helps a individual in different ways. Remuneration reward, for example. Here, a person wants more money from a content.

Some types of rewards are bribery, inherent rewards and innate motivation.

4 0
3 years ago
Read 2 more answers
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