9A A personnel researcher has designed a questionnaire
and she would like to estimate the average time to complete the
questionnaire. Suppose she samples 100 employees and finds that the
mean time to take the test is 27 minutes with a standard deviation
of 4 minutes. Construct a 90% confidence interval for the mean time
to complete the questionnaire. Also, write a short explanation
about the findings to the human resources director of your company
summarizing the results. – Use Excel for this
analysis.
9B. For the problem in part A, the human resources director wants to know whether these is sufficient sample evidence to conclude that the average time to complete the questionnaire is not 27 minutes. Set up the hypotheses (in statistical terms) and, based only on the confidence interval you have constructed in part A, what would you conclude regarding the hypotheses?
H0 :
H1 :
In: Math
Which of the following statements is true?
Multiple Choice
The global bond market is about half the size of the global stock market.
Bonds are a common form of equity financing.
Bonds are generally traded “under-the-table.”
The U.S. Treasury is the largest issuer of bonds.
In: Finance
Which one of the following foreign bonds is the actual name of bonds that are traded in the U.S.?
a Bulldog bond
b Shogun bond
c Take-your-money-and-run bond
d Yankee bond
e All of the above
f None of the above
In: Finance
How does the concept of specialization determined by comparative advantage based on constant or increasing opportunity costs compare to the concept of specialization with increasing returns to scale? What do these differences imply about the types of products that are be traded and the types of countries that participate in trade?
In: Economics
Will improving customer service result in higher stock prices for the companies providing the better service? "When a company's satisfaction score has improved over the prior year's results and is above the national average (currently 75.7), studies show its shares have a good chance of outperforming the broad stock market in the long run." The following satisfaction scores of three companies for the 4th quarters of two previous years were obtained from the American Customer Satisfaction Index. Assume that the scores are based on a poll of 68 customers from each company. Because the polling has been done for several years, the standard deviation can be assumed to equal 8 points in each case.
Company Year 1 Score Year 2 Score
Rite Aid 74 78
Expedia 78 81
J.C. Penney 72 80
a. For Rite Aid, is the increase in the satisfaction score from year 1 to year 2 statistically significant? Use x= 0.05 and null hypothesis is h0: u1-u2 <=0 . What can you conclude?
z value (to 2 decimals)
p-value (to 4 decimals)
b. Can you conclude that the year 2 score for Rite Aid is above the national average of 75.7? Use x=0.05 and null hypothesis is . Enter negative value as negative number.
z value (to 2 decimals)
p-value (to 4 decimals)
c. For Expedia, is the increase from year 1 to year 2 statistically significant? Use and null hypothesis is .
z value (to 2 decimals)
p-value (to 4 decimals)
d. When conducting a hypothesis test with the values given for the standard deviation, sample size, and , how large must the increase from Year 1 to Year 2 be for it to be statistically significant? (to 2 decimals)
e. Use the result of part (d) to state whether the increase for J.C. Penney from year 1 to year 2 is statistically significant.
The increase () statistically significant.
In: Statistics and Probability
On October 31, 2021, Blossom Company had a cash balance per books of $8,967. The bank statement on that date showed a balance of $10,150. A comparison of the statement with the Cash account revealed the following:
When the accountant of Pharoah
Company prepared the bank reconciliation on May 31, 2021, there
were three outstanding cheques: #690 for $306, #693 for $176, and
#694 for $266. There were no deposits in transit as at May 31,
2021. The bank balance at May 31 was $17,664. The balance in the
Cash account on the May 31, 2021, adjusted trial balance was
$16,916. The following is selected information from the June bank
statement:
The NSF cheque was originally received from a customer, Massif Co., in payment of its account of $161. The bank included a $21 service charge for a total of $182. Information from the company’s accounting records follows:
Investigation reveals that cheque #712 was issued to purchase equipment and cheque #710 was issued to pay an account payable. All deposits are for collections of accounts receivable. The bank made one error: cheque #119 for Pharoah Co. Ltd. was charged to Pharoah’s bank account. The company’s policy is to pass on all NSF service charges to the customer. |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Calculate the balance per bank statement at June 30 and the
unadjusted Cash balance per company records at June 30.
A) Prepare a bank reconciliation at June 30.
B) Prepare the necessary adjusting entries at June 30.
C) What balance would Pharoah Company report as cash in the current assets section of its balance sheet on June 30, 2021?
In: Accounting
Question 3 [14] Consider the following prices and quantities:
|
Price (per kg) |
Quantities produced |
|||||
|
|
||||||
|
2010 |
2012 |
2015 |
2010 |
2012 |
2015 |
|
|
Beans |
3.95 |
3.89 |
4.13 |
675 |
717 |
436 |
|
Onions |
61.50 |
62.20 |
59.70 |
117 |
115 |
115 |
|
Carrots |
34.80 |
35.40 |
38.90 |
77 |
74 |
82 |
1. Compute and interpret the Paasche’s Quantity Index number for the year 2012 with 2010 as the base year. (7)
2. Compute and interpret the Laspeyres Price Index number for the year 2015 with 2012 as the base year
In: Statistics and Probability
Using the Black/Scholes Option Pricing Model, calculate the value of the call option given:
S= 74; X=70; T=6 months; =.50; Rf =10%
What is the intrinsic value of the call?
What stock price is necessary to break-even?
If volatility were to decrease, the value of the call would ___________?
If the exercise price would increase, the value of the call would ___________?
If the time to maturity were 3-months, the value of the call would ___________?
If the stock price were $62, the value of the call would _________?
What is the maximum value that a call can take? Why?
In: Finance
6. The heights of women are normally distributed with a mean of 65 in. and a standard deviation of 2.5 in. The heights of men are normally distributed with a mean of 70 in. and a standard deviation of 3.0 in. Relative to their peers, who would be considered taller: A 68 in. woman or a 74 in. man?
7. The lengths of adult blue whales are normally distributed with a mean of 30 meters and a standard deviation of 6 meters. What is the probability that a randomly selected adult blue whale would have a length that differs from the population mean by less than 3 meters?
Thank you for answering!!!
In: Statistics and Probability
The following accounts, among others, appeared on ZZ Company's balance
sheet at January 1, 2020 and December 31, 2020:
January 1, 2020 December 31, 2020
Accounts receivable 48,000 63,000
Utilities payable 20,000 26,000
Notes payable 71,000 80,000
Common stock 30,000 90,000
Retained earnings 22,000 78,000
The following information was taken from ZZ Company's 2020 income
statement:
Sales revenue $500,000
Cost of goods sold 280,000
Other expenses 120,000
Net income $100,000
Calculate the amount of cash collected from customers during 2020.In: Accounting