In 1679 new hamisphere was

You are interested in purchasing a new car and have done some research. One of the many points you wish to consider is the resal

kari74 [83]

Answer:

The 99% confidence interval would be given by (12004.26;12995.74)

Explanation:

1) Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X=12500$ represent the sample mean for the sample

$\mu$ population mean (variable of interest)

s=700 represent the sample standard deviation

n=17 represent the sample size

2) Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

In order to calculate the critical value $t_{\alpha/2}$ we need to find first the degrees of freedom, given by:

$df=n-1=17-1=16$

Since the Confidence is 0.99 or 99%, the value of $\alpha=0.01$ and $\alpha/2 =0.005$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.005,16)".And we see that $t_{\alpha/2}=2.92$

Now we have everything in order to replace into formula (1):

$12500-2.92\frac{700}{\sqrt{17}}=12004.26$

$12500+2.92\frac{700}{\sqrt{17}}=12995.74$

So on this case the 99% confidence interval would be given by (12004.26;12995.74)

8 0

2 years ago

The growth of the drug industry in canada represents which shift in organized crime? why is this important

Harrizon [31]

As the drug industry in Canada grow, Drugs that usually could be obtained only through criminal organization now can be easily obtained over the counter (as long as the requirements are met)
This make many major criminal organizations to lose their power and profits from their operation in Canada

8 0

2 years ago

Marquis Company uses a weighted-average perpetual inventory system and has the following purchases and sales:August 2 10 units w

mel-nik [20]

Answer:

COGS= $158.4

Explanation:

Giving the following information:

August 2: 10 units were purchased at $12 per unit

August 18: 15 units were purchased at $14 per unit

August 29: 12 units were sold.

First, we need to calculate the weighted-average purchasing price:

weighted-average purchasing price= [(10*12) + (15*14)]/25

weighted-average purchasing price= $13.2

COGS= 12*13.2= $158.4

5 0

3 years ago

Which one of the following is not true when the economy is in macroeconomic equilibrium? A. When the economy is at long-run eq

uranmaximum [27]

Answer:

The correct answer to the following question will be Option C.

Explanation:

Throughout the macroeconomic equilibrium, the aggregate supply curve becomes equivalent to something like the supply curve, the real GDP seems to be comparable to potential Output (GDP), however, if frictional as well as systemic unemployment seems to be the maximum total poverty throughout the longer term.
Consequently, whenever the economy seems to be in macroeconomic equilibrium, the argument which is not accurate would be that the businesses would have excess power.

So that Option C is the right answer.

6 0

2 years ago

An error in the ending inventory balance in Year 1 will also affect: (You may select more than one answer.)

Virty [35]

Answer:

A) Year 1 cost of goods sold

B) Year 2 cost of goods sold

D) Year 2 beginning inventory

Explanation:

A) Year 1 expense of merchandise sold : The Current year cost of Goods Sold is processed by deducting finishing stock from Opening Inventory and Purchases made during the year. So in the event that the completion stock isn't right, at that point the result of above calculation will not be right so the Year 1 expense of merchandise sold for example (Current year cost of Goods Sold) will be inaccurate.

D) Year 2 starting stock: year 2 starting stock is equivalent to year 1 completion stock. So on the off chance that off-base stock estimation is made at end of earlier year, at that point current year opening worth will be carried on as off-base.

B) Year 2 expense of merchandise sold: The explanation is same as ans q(i.e. Year 1 expense of merchandise sold) as off-base convey forward opening stock worth will bring about wrong calculation of cost of products sold for year 2.

6 0

2 years ago