Explain how the supply curve changes as the elasticity of supply increases.

A marketing firm is considering making up to three new hires. Given its specific needs, the management feels that there is a 60% chance of hiring at least two candidates. There is only a 7% chance that it will not make any hires and a 10% chance that it will make all three hires.

a. What is the probability that the firm will make at least one hire? (Round your answer to 2 decimal places.)

b. Find the expected value and the standard deviation of the number of hires. (Round intermediate calculations to at least 4 decimal places. Round your final answers to 2 decimal places.)

Construction of the new airport terminal has gone over budget and the Airport Authority needs every dollar it can get to pay its debt. They have asked your advice on a pricing strategy for parking at the airport. They know there are three types of parking users: 1) Short term users, who come to the airport to drop off or pick up passengers and stay for two hours or less; 2) Business travelers, who are away for one to four days; and 3) Leisure travelers that need parking for a week or more. a) Illustrate and use an appropriate economic model to explain how the airport could maximize its parking revenue. b) Use your analysis to discuss whether building a new parking garage would be a good investment for the airport?

A parent may terminate the execution of one of its children. What are the reasons?

DataPoint Engineering is considering the purchase of a new piece of equipment for $280,000. It has an eight-year midpoint of its asset depreciation range (ADR). It will require an additional initial investment of $180,000 in nondepreciable working capital. $45,000 of this investment will be recovered after the sixth year and will provide additional cash flow for that year. Income before depreciation and taxes for the next six are shown in the following table. Use Table 12–11, Table 12–12. Use Appendix B for an approximate answer but calculate your final answer using the formula and financial calculator methods.

The tax rate is 25 percent. The cost of capital must be computed based on the following:

a. Determine the annual depreciation schedule. (Do not round intermediate calculations. Round your depreciation base and annual depreciation answers to the nearest whole dollar. Round your percentage depreciation answers to 3 decimal places.)

b. Determine the annual cash flow for each year. Be sure to include the recovered working capital in Year 6. (Do not round intermediate calculations and round your answers to 2 decimal places.)

c. Determine the weighted average cost of capital. (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.)

d-1. Determine the net present value. (Use the WACC from part c rounded to 2 decimal places as a percent as the cost of capital (e.g., 12.34%). Do not round any other intermediate calculations. Round your answer to 2 decimal places.)

d-2. Should DataPoint purchase the new equipment?

The Dilana Corporation is considering a change in its cash-only policy. The new terms would be net one period. The required return is 1.5 percent per period. The firm has current sales of 3,500 units per month at a price of $71 per unit. The new policy is expected to increase sales to 3,550 units at a price of $71 per unit. The cost per unit is constant at $38. What is the incremental cash inflow of the new policy?

1. In a local agricultural reporting area, the average wheat yield is known to be 50 bushels

per acre with a wheat yield standard deviation of 10 bushels. The wheat yield is known to

be approximately normally distributed.

a) What percentage of the wheat yield is below 40 bushels per acre?

b) If a random sample of 25 acres is selected, what is the probability that the sample

mean yield will be between 48 and 52 bushels?

2. The weight of cans of sardines from a production line are normally distributed with a

mean of 16.8 oz and a variance of 2.25 oz. For each run of the process, 100 cans are

selected randomly and weighted. What is the probability that the average weight of these

cans is between 16.5 and 17.1 oz?

3. The Sullivan Advertising Agency has determined that the average cost to develop a 30-

second commercial is P50,000. The cost is assumed to be normal. What is the probability

that a random sample of 25 commercials with a standard deviation of P6,000 will have a

mean cost of P51,582 or less?

4. Two sets of bolts are intended to have different lengths but the same diameter. The

diameters of bolts of Type I have a variance of 4 cm; the diameters of the bolts of Type II

have a variance of 12 cm. Random samples of 10 bolts of Type I and 20 bolts of Type II

are obtained. What is the probability that the sample means will differ by at least 1.5 cm?

5. A random sample of 10 students from QUAMETH EA has an average grade of 65 with a

variance of 25; an independent random sample of 18 students from QUAMETH EB has

an average grade of 70 with a variance of 20. Assume that the grades of the two sections

are independently normally distributed with the same variance and means differing by 5

with the average of grade of EB higher than that of EA. Find the probability that the

sample mean of QUAMETH EB is at least 10 points higher than the sample mean of

QUAMETH EA.

6. Manufacturers of golf balls are concerned with a scientific concept called the coefficient

of restitution, defined as the ratio of the relative velocity of the ball and club after impact

to the relative velocity before impact. A manufacturer has developed a new solid-core

golf ball which he wishes to sell side-by-side with his firm's standard brand. The mean

coefficient of restitution for the new solid-core ball and the firm's standard brand of golf

ball are 0.69 and 0.55, respectively. The standard deviations of the coefficient of

restitution are 0.18 for the solid-core golf ball and 0.22 for the firm's standard brand. The

coefficient of restitution of the two types of golf balls can be assumed to be normally

distributed. A large institutional buyer of golf balls selects a random sample of 25 solid-

core golf balls and another random sample of 21 standard golf balls to test and compare

the two brands. Referring to the samples:

a) What is the probability that the mean coefficient of restitution of the solid-core golf

ball is greater than that of the standard golf ball?

b) What is the probability that the variance of coefficient of restitution of the solid-core

golf ball is less than 0.01674?

c) What is the probability that the ratio of the variance of the solid-core golf ball to the

standard brand is between 1.3924 and 1.9145?

7. The washers used in a particular type of motor are required to be of uniform thickness and

are manufactured so that the thickness has a standard deviation of a 0.0001 cm. What is

the probability that the standard deviation of a random sample of 25 washers is between

0.000072 cm and 0.00014 cm? Assume normality of population.

8. The variance of population 1 is twice the variance of population 2. Independent random

samples of size 16 and 11 are taken from these two normal populations. What is the

probability that the sample variance from population 1 is less than 5.7 times the sample

variance from population 2?

9. It is known that 5% of the radio tubes produced by a certain manufacturer are defective. If

the manufacturer sends out lots containing 100 tubes, what is the probability that at least

98% of the tubes are good?

10. The proportion of male births in the country per week is 0.48. What is the probability that

UST Hospital, which normally carries out natal deliveries at the rate of 40 babies per

week, will deviate at most 10% from the national statistic?

11. The proportion of households who watch a TV special in Ilocos is 60%. In Leyte, the

proportion of households who watch the same special is 70%. If a sample of 50 is

obtained from each province, what is the probability that the sample proportion from

Ilocos is less than that of Leyte?

12. A manufacturer produces test tubes from two independent processes. Process 1 produces

10% defectives while Process 2 produces 15% defectives. Random samples of size 100

are obtained from each process on a daily basis. What is the probability that the sample

from Process 1 has fewer defectives than the of Process 2?

13. A new process will be installed if its mean processing time is at most 20 minutes. The

new procedure was tried. In a random sample of 50 trials, an average processing time of

22.2 minutes with a standard deviation of 4.3 minutes was obtained. At a level of

significance of 0.05, should the new process be installed?

14. The output of a chemical process is monitored by taking a sample of 20 vials to determine

the level of impurities. The desired mean level of impurities is 0.040 grams per vial. If the

mean level of impurities in the sample is too high, the process will be stopped and

purged; if the sample mean is too low, the process will be stopped and the values will be

readjusted. Otherwise, the process will continue.

a) Sample results provide sample mean to be equal to 0.047 grams with sample standard

deviation equal to 0.018. At a significance level of 0.01, should the process be

stopped? If so, what type of remedial action will be required?

b) Assume that the mean level of impurities is within tolerable limits. If the maximum

tolerable variability of the process is 0.0002, do the sample results verify the

suspicion that the maximum tolerable variability has been exceeded? Use a 5% level

of significance.

15. Two astronomers recorded observations on a certain star. The 35 readings obtained by the

first astronomer have a mean reading of 1.45. The 32 observations by the second

astronomer have a mean reading of 1.30. Past experience has indicated that each

astronomer obtains readings with a variance of 0.50. Is there any difference between the

mean readings of the two astronomers? Use a level of significance of 0.01.

17. An advertising executive claims 50% of the people who saw Voltes V will remember the

name of their product after they watched the show. If 65 viewers in a random sample of

150 remembered the name of the product after seeing the show, what conclusion can be

reached at the 1% level of significance?

18. In an attitude test, 55 out of 120 persons of Community 1 and 115 persons out of 400 of

Community 2 answered “Yes” to a certain question. Do these two communities differ

fundamentally in their attitudes on this question assuming a 5% level of significance?

20. An advertising company wants to determine if the cartoon series, Voltes V, appeals to

male viewers more than female viewers. Based on random telephone interviews, it was

found that 23 out of 48 females and 41 out of 90 females watch the series regularly. What

should the advertising company conclude at the 5% level of significance?

How do you create your multiple regression formula from your data? I ran my Regression in excel and I have my data, I just don't know how to create the formula.

Following are the post-lab questions for the experiment: Magnetic Behavior and Electron Configuration of Compounds Version

1. Chromium, Cr, has 24 electrons. Write out the entire electron configuration for chromium using spdf notation.

2. How many unpaired electrons would you expect for chromium in [Cr(H2O)6] 3+? Is this a paramagnetic or diamagnetic material?

3. Cobalt, Co, has 27 electrons. Write out the entire electron configuration for cobalt using spdf notation.

4. How many unpaired electrons would you expect for manganese in KMnO4? Is this a paramagnetic or diamagnetic material?

5. This same experiment is performed on the international space station. What is the primary issue with performing this experiment in the absence of gravity? Design an experiment to compensate for this. As always, you do have duct tape.

1. Why is documentation, conclusion, and accumulation of audit evidence important for auditors to maintain?
2. Why are representation letters important confirmation for external auditors to use in their final evaluation of the audit?

topic:- Fundamentals of Databases

*********** no hand writing*********

If there is photo but photo don’t do fax ?

*the answer must be unique not copied "plagiarized "

question One

Consider the following two tables:

Table – EmployeeInformations

EmpId Name ManagerId DateOfJoining

121 Ali 321 01/31/2014

321 Raed 986 01/30/2015

421 Khaled 876 27/11/2016

Table – EmployeeSalary

EmpId Project Salary

121 P1 8000

321 P2 1000

421 P1 12000

Question

Explain the role of SQL authorization mechanisms that allow to differentiate among the users of the database as far as the type of access they are permitted on various data values in the database?

2b.With an internet shopping world example,explain the online shopping ai agent with html form code.(50marks)

Need own answer and no internet answers r else i il downvote nd report to chegg.Even a single is wrong i il downvote.its 50marks question so no short answer minimum 10page answer required and own answer r else i il downvote.

Note:Minimum 10page answer and no plagarism r else i il downvote and report to chegg.Minimum 10 to 15page answer required r else dnt attempt.strictly no internet answer n no plagarism.

its 50marks question so i il stricly review nd report

need own answer for 50marks.

You have just been hired as a financial analyst for Lydex Company, a manufacturer of safety helmets. Your boss has asked you to perform a comprehensive analysis of the company’s financial statements, including comparing Lydex’s performance to its major competitors. The company’s financial statements for the last two years are as follows:

To begin your assignment you gather the following financial data and ratios that are typical of companies in Lydex Company’s industry:

Required:

1. Present the balance sheet in common-size format.

2. Present the income statement in common-size format down through net income.

Required 1

Required 2

PART A:

Calculate pH for strong base solution: 7.4×10⁻² M KOH.

Express your answer using two decimal places.

PART B:

Calculate pH for strong base solution: 1.065 g of KOH in 510.0 mL of solution.

Express your answer using four decimal places

PART C:

Calculate pH for strong base solution: 15.0 mL of 1.90×10⁻² M Ca(OH)2 diluted to 510.0 mL.

Express your answer using three decimal places.

I am trying to find the percent yield of my final product in a Diels-Alder reaction. The weight of our final endo product (Cis-norborene-5,6-endo-dicarboxylic anhydride) was 5.025 grams. When performing the reaction, we used 2.5 grams of maleic anhydride and 2.5mL of cyclopentadine. Assume average molecular weight for the reagents.