1. Nutrient loss in food products is an important issue for food processing companies. We
would like to determine whether or not bread loses its vitamin C content over time.
a. Go to the Excel spreadsheet “Vitamin C in bread” that is posted with this assignment and
download it. There you will find results of an experiment conducted by a baking company.
The data show vitamin C content of 20 loaves of bread. Five of the loaves had vitamin C
measured the day of baking (day 0). Another five had vitamin C measured one day after
baking (day 1), and so forth for days 3 and 5.
b. Click Tools > Data Analysis and select the appropriate procedure for doing an analysis of
variance. I want to see a printout of the results obtained by using the Data Analysis Tool.
c. Interpret the results. Are there differences among the days in terms of vitamin C content?
What in the output tells you this?
|
Days after baking |
|||
|
0 days |
1 day |
3 days |
5 days |
|
46.2 |
37.5 |
23.1 |
10.0 |
|
54.3 |
27.0 |
13.9 |
13.5 |
|
42.9 |
44.1 |
24.3 |
15.8 |
|
37.0 |
31.0 |
29.4 |
8.9 |
|
38.1 |
36.7 |
34.1 |
25.3 |
2. Go the Excel spreadsheet “Trends in Vitamin C in bread” that is posted with this
assignment. There you will find the same data as in problem 1 but in a format that will allow
you to get a scatterplot and trendline.
a. Obtain the scatterplot and trendline (include the equation). I want to see a printout of this
analysis.
b. Use the equation in 2a to predict vitamin C content when day = 2. Include the answer on
your spreadsheet.
|
days |
vitamin C |
|
0 |
46.2 |
|
0 |
54.3 |
|
0 |
42.9 |
|
0 |
37.0 |
|
0 |
38.1 |
|
1 |
37.5 |
|
1 |
27.0 |
|
1 |
44.1 |
|
1 |
31.0 |
|
1 |
36.7 |
|
3 |
23.1 |
|
3 |
13.9 |
|
3 |
24.3 |
|
3 |
29.4 |
|
3 |
34.1 |
|
5 |
10.0 |
|
5 |
13.5 |
|
5 |
15.8 |
|
5 |
8.9 |
|
5 |
25.3 |
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The solubility of Mg3(AsO4)2 in water is 0.685 g in 0.935 L of water at a given temperature. What is the value of Ksp for Mg3(AsO4)2? (The molar mass of Mg3(AsO4)2 is 350.7 g/mol)
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What is the pH of a buffer solution containing 0.410 M hypochlorous acid (HOCl) and 0.050 M (sodium hypochlorite) NaOCl? (Ka(HOCL))=3.2*10^-8
Please show work.
In: Chemistry
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A rocket is launched at an angle of 53.0° above the horizontal with an initial speed of 98 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 31.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile.
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m (b) Find its total time of flight.
s (c) Find its horizontal range. m
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Baresse Corporation: Income Statements for Year Ending December 31
(Millions of Dollars)
|
2019 |
2018 |
|
|
Sales |
$11,000 |
$10,000 |
|
Operating costs excluding depreciation |
9,360 |
8,500 |
|
Depreciation and amortization |
380 |
360 |
|
Earnings before interest and taxes |
$1,260 |
$1,140 |
|
Less interest |
120 |
100 |
|
Pre-tax income |
$1,140 |
$1,040 |
|
Taxes (40%) |
$456 |
$416 |
|
Net income available to common shareholders |
$684 |
$624 |
|
Common dividends |
$220 |
$200 |
Baresse Corporation: Balance Sheets as of December 31 (Millions of Dollars)
|
2019 |
2018 |
|
|
Assets |
||
|
Cash |
$550 |
$500 |
|
Short term investments |
110 |
100 |
|
Accounts receivable |
2,750 |
2,500 |
|
Inventories |
1,650 |
1,500 |
|
Total current assets |
$5,060 |
$4,600 |
|
Net plant and equipment |
3,850 |
3,500 |
|
Total assets |
$8,910 |
$8,100 |
|
Liabilities and Equity |
||
|
Accounts payable |
$1,100 |
$1,000 |
|
Accruals |
550 |
500 |
|
Notes payable |
384 |
200 |
|
Total current liabilities |
$2,034 |
$1,700 |
|
Long term debt |
1,100 |
1,000 |
|
Total liabilities |
$3,134 |
$2,700 |
|
Common stock |
4,312 |
4,400 |
|
Retained earnings |
1,464 |
1,000 |
|
Total common equity |
5,776 |
5,400 |
|
Total liabilities and equity |
$8,910 |
$8,100 |
1.Construct a common-sized income statement for 2018 and 2019. Comment on any changes you see.
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2. Which of the following is an example of barter?
A. A homeowner gives an exterminator a check for $50 in exchange
for extermination services.
B. A barber gives a plumber a haircut in exchange for the plumber
fixing the barber’s leaky faucet.
A. You sell your old lawnmower at a yard sale and the buyer gives
you $40 in payment for it.
D. All of the above are examples of barter.
E. None of them are examples of barter.
3. Which of the following statements is (are) correct?
(x) If you mark the prices of shirts at your clothing store in
dollars you are using money as a unit of account
(y) When you pay for your food at the restaurant with currency you
are utilizing the medium of exchange function of money.
(z) Any item that people can use to transfer purchasing power from
the present to the future is called a store of value
A. (x), (y), and (z)
B. (x) and (y) only
C. (x) and (z) only
D. (y) and (z) only
E. (y) only
4. Which of the following best illustrates the concept of a store
of value?
A. You shop at Dollar General because you think it is a store of
value.
B. You sell items on eBay, and your prices are stated in terms of
dollars.
C. You keep a very large jar of quarters, dimes, nickels and
pennies in your bedroom closet.
D. You are a precious-metals dealer, and you are always aware of
how many ounces of platinum trade for an ounce of gold.
E. None of the above is correct because none of them are a store of
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A 3.10-N metal bar, 2.00 m long and having a resistance of 10.0 Ω, rests horizontally on conducting wires connecting it to the circuit shown in the figure (Figure 1) . The bar is in a uniform, horizontal, 1.40-T magnetic field and is not attached to the wires in the circuit.
What is the magnitude of the acceleration of the bar just after the switch S is closed?
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A random sample of n = 64 observations has a mean x = 29. 1, and a standard deviation of s = 3.9. Find a 90 % confidence interval for the population mean.. A major department store chain is interested in estimating the average amount its credit card customers spent on their first visit to the chain's new store in the mall. Fifteen credit card accounts were randomly sampled and analyzed with the following results: = $50.50 and = 400. Find a 95% confidence interval for the average amount the credit card customers spent on their first visit to the chain's new store in the mall.
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vv
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Which of the following names is correct?
| 1-propyl-2-pentene | |
| 3,3-diethyl-4-propene | |
| 2-ethyl-3-pentene | |
| 2-methyl-1-butene | |
| None of the above are correct. |
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4.
If you buy a call option of Amazon Inc. with an exercise price of $2000 for a premium of $210.
Draw payoff and profit of call option buyer and call option writer at expiration date graphically.
(use a ruler and draw it by hand if it is hard for you to do it on your computer)
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