A number of minor automobile accidents occur at various high-risk intersections in York county despite the traffic lights. The traffic department claims that a modification in the type of light will reduce these accidents. The county commissioners have agreed to a proposed experiment. Eight intersections were chosen at random, and lights at those intersections were modified. The number of minor accidents during a six-months periods before and after the modifications were
|
Number of accidents |
||||||||
|
A |
B |
C |
D |
E |
F |
G |
H |
|
|
Before modification |
5 |
7 |
6 |
4 |
8 |
9 |
8 |
10 |
|
After modification |
3 |
7 |
7 |
0 |
4 |
6 |
8 |
2 |
At the .01 significance level, it is reasonable to conclude that the modifications reduced the number of traffic accidents?
In: Math
A high school is examining whether or not a certain college admissions test prep course is helpful. To evaluate this, 15 students took the college admissions test. Afterwards, they went through the prep course and then took the admissions test again. Their before and after scores are shown below. With a significance level of 0.90, is the admissions test prep course effective?
Student Before After
1 27 29
2 28 29
3 30 31
4 32 31
5 16 20
6 25 27
7 27 27
8 25 26
9 27 30
10 23 28
11 25 26
12 24 24
13 22 25
14 31 32
15 25 25
In: Math
A certain drug is tested for its effect on blood pressure. Seven male patients have their systolic blood pressure measured before and after receiving the drug with the results shown below (in mm Hg).
Patient SBP before SBP after
1 120 125
2 124 126
3 130 138
4 118 117
5 140 143
6 128 128
7 140 146
a. (2) State, in prose, the study hypothesis (two-tailed).
b. (2) What test statistic(s) test would you use?
c. (2) What is the critical value of the test statistic?
d. (3) If the value of the test statistic is t = 2.67, what do you conclude (reject/do not reject is not sufficient).
In: Math
Mavis corporation has 75,000 shares of $1 par value stock outstandiing. The largest single stockholders is Lennox Bing, who owns 6,000 shares. On December 31, the total assets of the company amount to $4,360,000 and total liabilities to $2,230,000. On that day, the board of directors declared a stock dividend of one new share for each five shares outstanding. Compute the following: Book value per share before the stock dividend:( ) Book value per share after the stock dividend ( ) Total book value of Lennox Bing's stockholdings before the dividend ( ) Total book value of Lennox Bing's stockholdings after the dividend ( ) Prepare the stockholder's equity section of the Mavis Corporation balance sheet assuming that retained earning is $1,650,000 and there are no perferred stocks.
In: Accounting
A team of health research wants to investigate whether having regular lunch break improves working adults’ sleep. A group of 85 adults with a full-time job were recruited in the study, they reported average hours of sleep in the past week, committed to having a 1-hour, out-of-office, work-free lunch break each day for 3 months, and, at the end of the study, reported average hours of sleep in the past week. The mean difference in hours of sleep before and after the study was 3 with a standard deviation of 0.9. Which one of the following statements is INCORRECT? (Set alpha level at 0.05.)
| The decision should be to reject the null hypothesis. |
| The null hypothesis is that hours of sleep remain the same before and after the study. |
| The obtained test statistic is 3.073. |
| The degrees of freedom is 84. |
In: Math
Consider a commercial space with two tenants. An upscale restaurant and a live music venue. Currently, the restaurant is open serving customers until 10pm each night and the venue has music beginning at 9pm each night.
The live music causes a disturbance at the restaurant harming the restaurant owner's profit, so the owner is demands the music venue does not begin operating until 10pm. The venue owner counters that the restaurant should just close an hour early, at 9pm.
The following are the hourly profits both firms will earn depending on various closing times.
Assume no transaction costs.
a) Between the three scenarios, the efficient outcome is Scenario ["A", "B", or "C"] and the most inefficient outcome is Scenario ["A", "B", or "C"]
b) Suppose the restaurant has the property rights, meaning if the restaurant loses profit due to the venue, the venue must pay the amount of the restaurant's lost profit. After any and all negotiations, does the Coase Theorem predict the venue will open at 9pm or 10pm?
c) Suppose the venue has the property rights, menaing the venue is not responsible for any profit lost by the restaurant. After any and all negotiations, does the Coase Theorem predict the venue will open at 9pm or 10pm?
d) Should, in any scenario, the restaurant pay the venue to stay closed until 10pm, what range of values represent an improvement to both tenants compared to the status quo? ["$200 - $400", "$400 - $600", "$600 - $800", "$800 - $1000", "$1000 - $1200"]
In: Economics
Marigold Corporation’s retail store and warehouse closed for an
entire weekend while the year-end inventory was counted. When the
count was finished, the controller gathered all the count books and
information from the clerical staff, completed the ending inventory
calculations, and prepared the following partial income statement
for the general manager for Monday morning:
| Sales | $ | 2,743,000 | |||||
| Beginning inventory | $ | 654,000 | |||||
| Purchases | 1,540,000 | ||||||
| Total goods available for sale | 2,194,000 | ||||||
| Less ending inventory | 654,000 | ||||||
| Cost of goods sold | 1,540,000 | ||||||
| Gross profit | $ | 1,203,000 |
The general manager called the controller into her office after
quickly reviewing the preliminary statements. “You’ve made an error
in the inventory,” she stated. “My pricing all year has been
carefully controlled to provide a gross profit of 35%, and I know
the sales are correct.”
(a)
Marigold Corporation’s retail store and warehouse closed for an
entire weekend while the year-end inventory was counted. When the
count was finished, the controller gathered all the count books and
information from the clerical staff, completed the ending inventory
calculations, and prepared the following partial income statement
for the general manager for Monday morning:
| Sales | $ | 2,743,000 | |||||
| Beginning inventory | $ | 654,000 | |||||
| Purchases | 1,540,000 | ||||||
| Total goods available for sale | 2,194,000 | ||||||
| Less ending inventory | 654,000 | ||||||
| Cost of goods sold | 1,540,000 | ||||||
| Gross profit | $ | 1,203,000 |
The general manager called the controller into her office after
quickly reviewing the preliminary statements. “You’ve made an error
in the inventory,” she stated. “My pricing all year has been
carefully controlled to provide a gross profit of 35%, and I know
the sales are correct.”
(a)
How much should the ending inventory have been?
| Expected ending inventory | $enter the Expected ending inventory in dollars |
How much should the ending inventory have been?
| Expected ending inventory | $enter the Expected ending inventory in dollars |
In: Accounting
For C++ Use arrays and or vectors, no classes.
Visualize and consider 100 lockers all lined up horizontally in
a row
Each locker is numbered from 1 to 100 in sequential order
Every locker can be fully closed (open state = 0.00)
Every locker can be fully opened (open = 1.00)
Every locker can be partially open with any possible value between
0.00 and 1.00 inclusive on both ends
A locker cannot ever be more closed than fully closed (open cannot
be less than 0.00)
A locker cannot ever be more open than fully opened (open cannot be
greater than 1.00)
All 100 lockers start in the fully closed state
100 students will be walking by the lockers and opening/closing
them in the following manner:
The 1st student will OPEN EVERY LOCKER 1/2 of the way (ADD 0.50 TO LOCKERS 1,2,3,4...)
The 2nd student will CLOSE EVERY SECOND LOCKER 1/3 of the way (SUBTRACT 0.333333333333 FROM LOCKERS 2,4,6,8...)
The 3rd student will OPEN EVERY THIRD LOCKER 1/4 of the way (ADD 0.25 TO LOCKERS 3,6,9,12...)
The 4th student will CLOSE EVERY FOURTH LOCKER 1/5 of the way (SUBTRACT 0.20 FROM LOCKERS 4,8,12,16...)
The 5th student will OPEN EVERY FIFTH LOCKER 1/6 of the way (ADD 0.166666666666 TO LOCKERS 5,10,15,20...)
The 6th student will CLOSE EVERY SIXTH LOCKER 1/7 of the way (SUBTRACT 0.142857142857 FROM LOCKERS 6,12,18,24...)
The 99th student will OPEN EVERY 99TH LOCKER 1/100 of the way (ADD 0.01 TO LOCKER 99)
The 100th student will CLOSE EVERY 100TH LOCKER 1/101 of the way (SUBTRACT 0.009900990099 FROM LOCKER 100)
NOTE: Remember that the locker open state must always stay within 0.00 <= value <= 1.00
1) Develop C++ code that will generate the open state values for
all 100 lockers
2) Also develop C++ code that will output answers to the following
questions:
Which lockers are left fully closed (open state == 0.00)?
Which lockers are left fully open (open state == 1.00)?
Which locker is the one opened the least and what is its value (open state closest to 0.00)?
Which locker is the one closed the least and what is its value (open state closest to 1.00)?
In: Computer Science
For C++ Use arrays and or vectors, no classes.
Visualize and consider 100 lockers all lined up horizontally in
a row
Each locker is numbered from 1 to 100 in sequential order
Every locker can be fully closed (open state = 0.00)
Every locker can be fully opened (open = 1.00)
Every locker can be partially open with any possible value between
0.00 and 1.00 inclusive on both ends
A locker cannot ever be more closed than fully closed (open cannot
be less than 0.00)
A locker cannot ever be more open than fully opened (open cannot be
greater than 1.00)
All 100 lockers start in the fully closed state
100 students will be walking by the lockers and opening/closing
them in the following manner:
The 1st student will OPEN EVERY LOCKER 1/2 of the way (ADD 0.50 TO LOCKERS 1,2,3,4...)
The 2nd student will CLOSE EVERY SECOND LOCKER 1/3 of the way (SUBTRACT 0.333333333333 FROM LOCKERS 2,4,6,8...)
The 3rd student will OPEN EVERY THIRD LOCKER 1/4 of the way (ADD 0.25 TO LOCKERS 3,6,9,12...)
The 4th student will CLOSE EVERY FOURTH LOCKER 1/5 of the way (SUBTRACT 0.20 FROM LOCKERS 4,8,12,16...)
The 5th student will OPEN EVERY FIFTH LOCKER 1/6 of the way (ADD 0.166666666666 TO LOCKERS 5,10,15,20...)
The 6th student will CLOSE EVERY SIXTH LOCKER 1/7 of the way (SUBTRACT 0.142857142857 FROM LOCKERS 6,12,18,24...)
The 99th student will OPEN EVERY 99TH LOCKER 1/100 of the way (ADD 0.01 TO LOCKER 99)
The 100th student will CLOSE EVERY 100TH LOCKER 1/101 of the way (SUBTRACT 0.009900990099 FROM LOCKER 100)
NOTE: Remember that the locker open state must always stay within 0.00 <= value <= 1.00
1) Develop C++ code that will generate the open state values for
all 100 lockers
2) Also develop C++ code that will output answers to the following
questions:
Which lockers are left fully closed (open state == 0.00)?
Which lockers are left fully open (open state == 1.00)?
Which locker is the one opened the least and what is its value (open state closest to 0.00)?
Which locker is the one closed the least and what is its value (open state closest to 1.00)?
In: Computer Science
please highlight the answer it's very urgent subject is ACC 111
Q: One principal difference between an adjusting journal entry and a journal entry to record a transaction is
The adjustment can be needed because of an internal event such as using supplies
The transaction involved accounts payable
The adjustment always reduces cash
The transaction always increases common stock
Q: When adjusting for insurance coverage expiring during a period
Insurance expense is increased
Prepaid insurance is decreased
Both A and B
Cash is increased
Q: When adjusting for depreciation expense
An expense is increased
A liability is decreased
A revenue is decreased
An equity account is increased
Q: When adjusting unearned revenue
Revenue is increased
A liability is decreased
Both A and B
Neither A nor B
Q: When adjusting for an accrued expense
An expense is reduced
A liability is increased
An equity account is increased
A revenue is decreased
Q; Adjusting for wages earned by employees but not yet recorded
Increases an expense
Increases a liability
Both A and B
Neither A nor B
Q : Omitting the adjustment for unrecorded revenue
Understates net income
Understates assets
Understates equity
All of the above
Q:Which of the following events requires an adjustment
Borrowing money on a loan where principal and interest are due at maturity
Hiring an employee
Asking for proposals from three advertising agencies
Discussing future price increases
Q: Which of the following events requires an adjustment
Discussing possible future changes to the company’s logo
Receiving and paying October’s water bill before October 31
Hiring an attorney and agreeing to pay a retainer immediately
Completing revenue on October 20 and billing the customer the same day
Q: Omitting the adjustment for unearned revenue
Understates net income
Overstates liabilities
Both A and B
Neither A nor B
Q: The main accounting principle that requires adjusting entries is
Substance over form
The cost principle
The going concern principle
The matching principle
Q: Smith Company owns its building and land. The annual property tax bill is $12,000. Assuming Smith adjusts its accounts each month they should
Debit property tax expense and credit property tax payable for $12,000
Make no adjustment at all since it has not yet been paid
Debit property tax payable and credit property tax expense for $1,000
Debit property tax expense and credit property tax payable for $1,000
Q: Adjusting journal entries
Are optional according to GAAP
Are only used in months that end in y
Always use the cash account
Never use the cash account
Q : When closing the accounts at the end of the period
All asset accounts are closed
All equity accounts are closed
All temporary or nominal accounts are closed
All liability accounts are closed
Q : Closing the accounts
Sets nominal accounts back to zero at the end of a period
Updates the retained earnings account
Enables meaningful comparison of one period’s results to those of another period
All of the above
Q : When closing the revenue account
The revenue account is credited
The revenue account is debited
The unearned revenue account is closed
The expense accounts are debited
Q : When closing the expense accounts
The income summary account is debited
The expense accounts are credited
Both A and B
Neither A nor B
Q : When closing the income summary account
The retained earnings account may be debited or credited
The dividends account is debited
The cash account is credited
The common stock account is debited
Q ; When closing the dividends account
The income summary account is debited
The retained earnings account is credited
The retained earnings account is debited
None of the above
Q : The reason permanent or real accounts are not closed is because
They recorded how much of something occurred during a period
They recorded how much of something remains at the end of a period
They will stay open as long as the company still exists
Both B and C
In: Accounting