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bazaltina [42]
4 years ago
15

A population of unknown shape has a mean of 75. You select a sample of 20. The standard deviation of the sample is 5. Compute th

e probability the sample mean is: a. Between 76 and 77. (0.5 Points) b. Greater than 77. (0.5 Points)
Business
1 answer:
mestny [16]4 years ago
4 0

Answer: a. 0.1500  b. 0.0367

Explanation:

Let X is a random variable with a distribution that may be known or unknown:

\mu_x = the mean of X

\sigma_x = the standard deviation of X

If we draw random samples of size n, then the random samples contains sample means \overline{X}, tends to be normally distributed

\overline{X}\sim N(\mu_x,\dfrac{\sigma_x}{\sqrt{n}})

Here, \mu_x = 75

\sigma_x =5

n=20

a.

P(76

b.

P(\overline{X}>77)=P(\dfrac{\overline{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}>\dfrac{77-75}{\dfrac{5}{\sqrt{20}}})\\\\=P(Z>1.79) \ \ [z=\dfrac{\overline{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}]\\\\=1-P(z

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Answer:

C. Growth

Explanation:

Starting investment early is something that is always encouraged and that is the case of John Hernadez here. By starting early, before he retires, he'd have been able to grow is investment portfolio substantially and even be a millionaire by the time of his retirement. Growth is the most important factor for John, that's why is he's starting his investment early. With the time given for growth, investment value may increase in value and it allows time for appreciation of stock price.

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3 years ago
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Free Spirit Industries Inc.’s current ratio is 1.3333, and tis quick ratio is 0.7467; Jong Foodstuffs Inc.’s current ratio is 1.
ivolga24 [154]

Answer:

1. Jong Foodstuffs Inc. has a better ability to meet its short-term liabilities that Free Spirit. - TRUE

2. A current ratio of 1 indicates that the book value of the company’s current assets is equal to the book value of its current liabilities. - TRUE

3. If a company has a quick ratio of less than 1 but a current ratio of more than 1 and if the difference between the two ratios is large, then the company depends heavily on the sale of its inventory to meet its short-term obligations. - TRUE

4. Compared to Free Spirit, Jong Foodstuffs has less liquidity and a lower reliance on outside cash flow to finance its short-term obligations. FALSE

5. An increase in the current ratio over time always means that the company’s liquidity position is improving. FALSE

Explanation:

Current Ratio = Current Asset / Current Liabilities

Quick Ratio = (Current Assets – Inventories) / Current Liabilities

The Current Ratio is a liquidity measure that shows the ratio between current asset and current liabilities. It tells how many dollars of the current asset are per dollar of current debts, that gives an idea of the company`s ability to perform its debts.    

The Quick Ratio is also a liquidity indicator, but using its most liquid assets, to pay its current liabilities at maturity. The inventory, although it is a current asset, is not considered, since it cannot be converted into cash in a very short term.

The difference between the Quick Ratio and the Current Ratio, implies that while both are measures of the company's ability to pay its debts, the quick ratio also tells how much the company depends on its inventory to get that objective.

As both ratios are bigger in Jong Foodstuffs Inc.’s case, statement 1 is True and statement 4 is False. Because how ratios are calculated, and the meaning of its terms, statement 2 and 3 are True. And because an increased in current ratio, may implicate a rise in inventory, and therefore a decreased in quick ratio, statement 4 is False.  

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3 years ago
What is a success for a coffe shop
Snowcat [4.5K]
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3 years ago
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Mercury Corporation issued 7,000 shares of no-par common stock for $15 per share. Mercury also issued 2,800 shares of $70 par, 6
inessss [21]

Answer:

Issue of  7,000 shares of no-par common stock for $15 per share

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Financing Activity (FA)

Explanation:

Issue of  7,000 shares of no-par common stock for $15 per share

This represents capital funding and is included in the Cash Flow Statement as Cash Flow from Financing Activity.

Issue of 2,800 shares of $70 par, 6 percent noncumulative preferred stock at $80 per share

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LO 8.3What are some possible reasons for a direct labor time variance?
kifflom [539]

Answer:

The correct answer is letter "B": less qualified workers.

Explanation:

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