Question
In: Statistics and Probability
3. In the 24 months from January 2016 through December 2017, the variance of the monthly...
3. In the 24 months from January 2016 through December 2017, the variance of the monthly percent changes in the 1000 elements of an unweighted price index was 0.24. In 2018, the variance of the 12 months of data was 0.32. How do you ascertain whether the standard deviation has changed since 2017? Has it (assume a 95% level of confidence)?
Solutions
orchestra answered 2 years agoRelated Solutions
From a random sample of 75 business days from January 4, 2010, through February 24, 2017,...
From a random sample of 75 business days from January 4, 2010,
through February 24, 2017, Russian silver prices had a mean of
$3,338.48 and σ=$205.61 was the population standard deviation of
silver prices. Construct a 90% confidence interval for the true
population mean µ and interpret this interval.
From a random sample of 75 business days from January 4, 2010, through February 24, 2017,...
From a random sample of 75 business days from January 4, 2010,
through February 24, 2017, Russian silver prices had a mean of
$3,338.48 and σ=$205.61 was the population standard deviation of
silver prices. µ [?- E. ?=E what is the probability that µ is
contained in the interval?
Stepfall Ltd had the following ratios at 31 December 2017 and 31 December 2016: 2017 2016...
Stepfall Ltd had the following ratios at 31 December 2017 and 31
December 2016: 2017 2016 Gross profit margin 27% 31% Return on
capital employed 15% 22% Current ratio 1.1:1 0.7:1 Acid test ratio
0.8:1 0.6:1 Trade receivable days 33 days 48 days Inventory holding
days 42 days 57 days Which ONE of the following statements is
TRUE?
a)
The company’s profitability, working capital management and
liquidity have improved.
b) The company’s profitability and working capital management
have deteriorated but...
Jafan Retailing, Balance Sheet Statement December 31, 2016 & December 31, 2017 2016 2017 Cash $ ...
Jafan Retailing, Balance Sheet
Statement December 31, 2016 & December 31, 2017
2016
2017
Cash
$ 235,000
$ 400,000
Accounts Receivable
367,200
325,000
Inventory
450,000
500,200
Prepaid Expenses
120,000
160,000
Long-term investment
100,000
300,000
Equiptment (Net)
1,050,000
1,125,000
Total Assets
$ 2,322,200
$ 2,810,200
Accounts Payable
$ 421,000
$ 411,000
Salary Payable
134,000
180,000
Interest Payable
110,000
112,000
Bonds Payable
550,000
560,000
Common Shares...
QUESTION 2 MONTHLY Expected Returns, Standard Deviations, and Correlations July 1990 through December 2014, 294 months,...
QUESTION 2
MONTHLY Expected Returns, Standard Deviations, and
Correlations July 1990 through December 2014, 294 months, returns
are total stock market returns for the region)
Correlation with:
Asset Class
Expected Return
Std. Deviation
US
Japan
Asia (non-Japan)
Europe
US
0.89%
4.34%
1.00
0.41
0.71
0.79
Japan
0.21%
5.97%
0.41
1.00
0.47
0.50
Asia (non-Japan)
0.96%
6.01%
0.71
0.47
1.00
0.75
Europe
0.74%
5.04%
0.79
0.50
0.75
1.00
4. Suppose you are currently invested 100% in U.S. stocks and
you CANNOT...
A Company is closing its books on December 31, 2019. On January 3, 2020, a monthly...
A Company is closing its books on December 31, 2019. On January
3, 2020, a monthly freight bill of $15,000 was received. The bill
specifically related to merchandise purchased in December 2019,
one-third of which was still in inventory at December 31, 2019. The
freight charge was not included in either the inventory or accounts
payable at December 31, 2019. For both items below, indicate
whether the adjustment needed is an increase or decrease by putting
an “X” over increase...
Melbourne Ltd acquired 100% of Sydney Ltd on 11 December 2016. On 1 January 2017, Sydney...
Melbourne Ltd acquired 100% of Sydney Ltd on 11 December 2016.
On 1 January 2017, Sydney Ltd sold a machine to Melbourne Ltd for
$80,000 and recorded a profit of $20,000. Melbourne Ltd will
depreciate this machine on a straight-line basis over its useful
life of 8 years. You, the group accountant, have just finished
preparing the consolidated financial statements for the year ending
30 June 2020. Mrs Jones, CEO of Melbourne Ltd, is not an accountant
and she doesn’t...
1.On January 15, 2016, Bravo Company purchased $1,500 of construction supplies to last for 3 months...
1.On January 15, 2016, Bravo Company purchased $1,500 of
construction supplies to last for 3 months on account, from the
Zulu Company. Prepare Bravo Company's general journal entry
(without explanation).
2. On January 15, 2016, Bravo Company purchased $3,000 of
construction supplies to last for 3 months, from the Zulu Company.
Bravo paid for half of the supplies with cash and the remainder on
account.
3. On January 31, 2016, Bravo withdrew $3,000 from the company.
Prepare the general journal...
$5,000 are borrowed now with the understanding that it will be repaid in equal monthly payments over 24 months
$5,000 are borrowed now with the understanding that it will be
repaid in equal monthly payments over 24 months, if the interest
rate is 1% per month, for payment number 6 find the amount that is
due to principal? Your answer might be exact or to the closest.a. $833.33b. $194.83c. -540.54d. $40.54
Problem 2 A random sample of 41 business days, from 2016 through 2017, of the closing...
Problem 2
A random sample of 41 business days, from 2016 through 2017, of
the closing price of Apple stock is conducted. The sample produces
an average closing price of $116.16 with a standard deviation of
$10.27.
Verify the requirements for the confidence interval.
For a 95% confidence interval, find the margin of error for the
true average closing price of Apple stock from 2016 through
2017.
Interpret a 95% confidence interval for the true average
closing price of Apple...
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