STRAIGHT FROM THE BOOK
Roulette In the casino game of roulette there is a wheel
with 19 black slots, 19 red slots, and 2 green slots. In the game,
a ball is rolled around a spinning wheel and it lands in one of the
slots. It is assumed that each slot has the same probability of
getting the ball. This results in the table of probabilities
below.
Fair Table Probabilities
| black | red | green | |
| Probability | 19/40 | 19/40 | 2/40 |
You watch the game at a particular table for 130 rounds and count
the number of black, red, and green results. Your observations are
summarized in the table below.
Outcomes (n = 130)
| black | red | green | |
| Counts | 48 | 73 | 9 |
The Test: Test the claim that this roulette table
is not fair. That is, test the claim that the distribution of
colors for all spins of this wheel does not fit the expected
distribution from a fair table. Test this claim at the 0.01
significance level.
(a) What is the null hypothesis for this test?
H0: The probabilities are not all equal to 1/3.H0: p1 = 19/40, p2 = 19/40, and p3 = 2/40. H0: p1 = p2 = p3 = 1/3H0: The probabilities associated with this table do not fit those associated with a fair table.
(b) The table below is used to calculate the test statistic.
Complete the missing cells.
Round your answers to the same number of decimal places as
other entries for that column.
| Observed | Assumed | Expected | |||||
| i | Color | Frequency (Oi) | Probability (pi) | Frequency Ei |
|
||
| 1 | black | 0.475 | 61.75 | 3.062 | |||
| 2 | red | 73 | |||||
| 3 | green | 9 | 0.050 | 6.50 | 0.962 | ||
| Σ | n = 130 | χ2 = | |||||
(c) What is the value for the degrees of freedom?
(d) What is the critical value of χ2?
Use the answer found in the
χ2-table or round to 3 decimal
places.
tα =
(e) What is the conclusion regarding the null hypothesis?
reject H0
fail to reject H0
(f) Choose the appropriate concluding statement.
We have proven that this table is fair.
The results of this sample suggest the table is not fair.
There is not enough data to conclude that this table is not fair.
In: Statistics and Probability
A snack-size bag of M&Ms candies is opened. Inside, there are 12 red candies, 12 blue, 7 green, 13 brown, 3 orange, and 10 yellow. Three candies are pulled from the bag in succession, without replacement. Determine the probability of the following. (Enter your probabilities as fractions.)
-The first candy drawn is red.
-The second candy drawn is red, given that the first candy drawn is red.
-The third candy drawn is green, given that the first two candies drawn are red.
-The first two candies drawn are red and the third is green.
**please show work
In: Statistics and Probability
What fiscal policy recommendations would you provide based on the current state of the economy, the budget deficit, and the national debt? Is your recommendation pro-cyclical or counter-cyclical? Explain your policy choices.
In: Economics
In: Finance
A bag of 30 tulip bulbs contains 13 red tulip bulbs, 10 yellow tulip bulbs, and 7 purple tulip bulbs. Suppose two tulip bulbs are randomly selected without replacement from the bag.
(a) What is the probability that the two randomly selected tulip bulbs are both red?
(b) What is the probability that the first bulb selected is red and the second yellow?
(c) What is the probability that the first bulb selected is yellow and the second red?
(d) What is the probability that one bulb is red and the other yellow?
In: Statistics and Probability
Write in detail about one hypothetical scenario involving a breach of contract involving a business.
In: Economics
For The introduction include
1) Background about bacteria. specifically the differences between gram + and gram - bacteria. Talk about B. subtilus and E. coli (what they are?)
2) Background on antibiotic resistance, How it formed and how is it affecting the society
3) State the objective of this experiment
4) predictions- please use what I wrote on the board. predictions need to be rationalized, not opinion oriented.
Please write this in order 1, 2, 3, 4. Make sure the organizations are good. also
- Include reference, literature reviews
-No question form
-Paragraph-wise
Methods
-Need to be PASSIVE, don't use I, you, we, the professor
-Make sure you use the correct and precise term
-Please don't divide them into sections, need to be in paragraph
-Need to mention the type of antibiotic used, bacterias used
-Treat this like a real lab experiment
-Don't mention we wait a week. After incubation, it's the measure of ZOI. and that's it.
-Don't be excessive. Only write enough so someone could replicate your experiment.
In: Biology
From Darwin to DNA: The Genetic Basis of Color Adaptations by Hopi Hoekstra ( Article Link: https://nescent.org/media/NABT2010/pdf/Hoekstra.pdf)
How can Darwin be linked to Francis Crick, the co-recipient of the Nobel Prize for modeling the three-dimensional structure of DNA?
Use Figure 1 to distinguish between Proximate and Ultimate questions in Biology.
Pick a question from Box 1 that is most interesting to you. State the question and explain your
interest.
What were the 3 main findings from the study of the adaptive significance of color variation?
What is the difference between forward and reverse genetics?
What is the role of Mc1r in determining pigmentation? What is the prediction for Mc1r activity
in beach mice?
Why is Figure 6 C the accepted cladogram including multiple origins of light color?
Is the mechanism (gene mutation) leading to light fur color the same for the Gulf and Atlantic
coast species?
What point was the author making when discussing wooly mammoths, fence lizards and the
snow goose (Figure 7)?
What did you find most interesting about the article?
Answer those question, please.
In: Biology
The income statement of Booker T Industries Inc. for the current year ended June 30 is as follows:
|
1 |
Sales |
$510,600.00 |
|
|
2 |
Cost of goods sold |
294,400.00 |
|
|
3 |
Gross profit |
$216,200.00 |
|
|
4 |
Operating expenses: |
||
|
5 |
Depreciation expense |
$39,000.00 |
|
|
6 |
Other operating expenses |
105,910.00 |
|
|
7 |
Total operating expenses |
144,910.00 |
|
|
8 |
Income before income tax |
$71,290.00 |
|
|
9 |
Income tax expense |
22,690.00 |
|
|
10 |
Net income |
$48,600.00 |
Changes in the balances of selected accounts from the beginning to the end of the current year are as follows:
| Increase (Decrease) | |
|---|---|
| Accounts receivable (net) | ($12,330) |
| Inventories | 4,290 |
| Prepaid expenses | (2,780) |
| Accounts payable (merchandise creditors) | (8,620) |
| Accrued expenses payable (operating expenses) | 1,050 |
| Income tax payable | (2,520) |
Prepare the Cash Flows from Operating Activities section of the statement of cash flows, using the direct method. Refer to the Amount Descriptions list provided for the exact wording of the answer choices for text entries. In the operating activities section, use the minus sign to indicate cash outflows, decreases in cash and a net cash outflow, if required.
b. What does the direct method show about a company’s cash flows from operating activities that is not shown using the indirect method?
a. Prepare the Cash Flows from Operating Activities section of the statement of cash flows, using the direct method. Refer to the Amount Descriptions list provided for the exact wording of the answer choices for text entries. In the operating activities section, use the minus sign to indicate cash outflows, decreases in cash and a net cash outflow, if required.
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Cash Flows from Operating Activities Section |
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1 |
Cash flows from operating activities: |
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2 |
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3 |
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4 |
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In: Accounting
Using your language, don't use any sites (by your understanding), write about the difference between the letter of credit and letter of guarantee
Word Limit for the assignment:
Upper word limit: 1200 words
Lower word limit: 600 words
In: Finance