1. A
university researcher is
interested in whether
recent recruitment efforts
have changed the
type of students
admitted to the
university. To test
this, she randomly
selects 50 freshmen
from the university
and records their
high school GPA.
The mean is 2.90
with a standard
deviation of 0.70.
The researcher also
knows that the mean
high school GPA of
all freshmen enrolled
at the university
five years ago was
2.75 with a
standard deviation of
0.36. The researcher
wants to know if
the high school GPA
of current freshmen
at the university
is different than
that of freshmen
from five years
ago.
(a) What are
the null and
alternative hypotheses in
this study (stated
mathematically)?
(b) Should the
researcher use a
one-tailed or a
two-tailed test?
(c) Compute the
appropriate test statistic
for testing the
hypothesis.
(d) Using α
= 0.05, what do
you conclude about
the high school GPA
of current freshman?
Be sure to include
a discussion of the
critical value in
your answer.
(e) What type
of error might the
researcher be making
in part (d)?
2. A researcher
believes that smoking
worsens a person’s
sense of smell. To
test this, he takes
a sample of 25
smokers and gives
them a test of
olfactory sensitivity. In
this test, higher
scores indicate greater
sensitivity. For his
sample, the mean
score on the test
is 15.1 with a
standard deviation of
1.2. The researcher
knows the mean
score in the
population is 15.5,
but the population
standard deviation is
unknown.
(a) What are
the null and
alternative hypotheses in
this study (stated
mathematically)?
(b) Should the
researcher use a
one-tailed or a
two-tailed test?
(c) Compute the
appropriate test statistic
for testing the
hypothesis.
(d) Using α
= 0.01, do you
conclude that smoking
affects a person’s
sense of smell? Be
sure to include a
discussion of the
critical value in
your answer.
(e) What type
of error might the
researcher be making
in part (d)?
In: Statistics and Probability
At the beginning of 2020, the balance sheet of a county general
fund reports $500,000 in property taxes receivable from 2019, of
which $350,000 are considered uncollectible. During 2020 the county
sends out tax bills in the amount of $10,000,000, of which $600,000
are expected to be uncollectible. Cash collections on 2019 taxes
are $140,000, and the remaining uncollected taxes are written off.
Cash collections on 2020 taxes are $9,500,000. Of the $500,000
uncollected at the end of 2020, $100,000 are expected to be
collected within 60 days, $65,000 are expected to be collected more
than 60 days after year-end, and the rest are uncollectible.
What are total property tax revenues for 2020, related to 2020 tax
bills?
| A. | $ 9,600,000 | |
| B. | $ 9,400,000 | |
| C. | $10,000,000 | |
| D. | $ 9,500,000 |
In: Accounting
1. Is social media a good thing or a bad thing?
2. Do you think that social media, instead of connecting us together, cut us off from other people?
In: Operations Management
If the FLN is uniquely human, and was acquired through adaptive evolution, what “faculty” might it have evolved from? What aspect of the nonhuman prime mind is homologous to the FLN?
In: Biology
The Income Statement of Adom Enterprise for the year ended 31stMarch,2020as prepared by an Accounts Assistant indicated a net profit of GHS 148,080. Though, the cash book on 31stMarch, 2020 showed a balance at bank to be GHS 13,460. Your attention is however drawn to the following:
i) Cheques from customers totalling GHS 14,940which were recorded in the cash book on March 25,2020 were not credited by the bank until April2, 2020. ii)Cheques issued on March 13, 2020totallingGHS 22,260in favour of suppliers were not paid by the bank until after the end of the year (that is after March31,2020
)iii) On 22 February2020, the bank paid an amount of GHS 10,800with respect to a standing order from Adom Enterprise for rent of business premises for the three months to April 30, 2020but unfortunately, no entry for this payment had been made in the cash book. Additionally, no provision of this outstanding rent had been made in the income statement for the period.
iv) On March31, a customer known as Mr. Kwarteng had paid GHS 7,020 into Adom Enterprise bank account through a standing order to his bankers in full settlement of a debit balance of GHS 7,200in Adom Enterprise sale ledger, but no entry had been made in the books.
v) On 30thMarch 2020, a cheque for GHS 1,440 was received from a customer in settlement of sales invoice for the same amount. The cheques were lodged into Adom Enterprise bank account. Both sale of goods and the cheque were entered in Adom Enterprise’s books. However, on 31stMarch 2020, the customer returned the goods and instructed her bankers not to pay the cheque (This instruction was carried out the same day) but no entries in respect of these latter developments have been made in Adom Enterprise’s books. The cost of these goods amounting to GHS 960 were not actually included in the closing inventories.
vi) Cheques received from two customers:Madam Adwoa Nyarkoa GHS2,150 and Papa Kwame Ayisi of GHS 1,520 were recorded at the wrong side of the cash book
.vii) A cheque for GHS 2,520 from an insurance company in settlement of claim for fire damage to inventory had been paid into the bank and credited by the bank on 21stMarch 2020, but an estimated amount of GHS 2,400had been entered in Adom Enterprise’s income statement.
viii) During a review of the financial records, it was discovered that the receipts side of the cash book was overstated by GHS 1,480. This has not been corrected.
Required:
a) Prepare a statement on March31,2020, clearly indicating the cash book balance.
)b) Prepare the bank reconciliation statement for Adom Enterprise
)c) Prepare a statement of corrected net profit of Adom Enterprise on 31stMarch, 2020
In: Accounting
Explain how the Earth's atmosphere protects us from dangerous radiation.
In: Physics
This is the question from US HISTORY 1 and it's for discussion!
The Jacksonian Era and the growing debate over the issue of slavery helped to create the U.S. system of two-party politics. The two-party American political system; has it hindered or enhanced the evolvement of the United States as a nation?
In: Finance
1.Describe the evidence of the unspent surplus in the US and Canada from 2009 to the present and the massive corporate tax evasion of the neoliberal period according to the Tax Justice Network.
In: Economics
Please think of an event in the US (from the past) that caused either the AD curve or the AS curve to shift. Briefly describe the event and draw an ADAS diagram to show what happened to GDP, Unemployment, and the Price level in the short run. Please use the sample graph below to see what your graph should look like - **be sure to show the correct curve shifting so your graph matches the event you described.
Don't forget to respond to a classmate.
In: Economics
Describe the trend of strikes among workers in the US from the 1930s to the present.
I hope to get a detailed answer, thank you
In: Economics