A study of the career paths of hotel general managers sent questionnaires to an SRS of 300 hotels belonging to major U.S. hotel chains. There were 187 responses. The average time these 187 general managers had spent with their current company was 9.93 years. (Take it as known that the standard deviation of time with the company for all general managers is 3.5 years.) (a) Find the margin of error for an 85% confidence interval to estimate the mean time a general manager had spent with their current company: 9.3109 years (b) Find the margin of error for a 99% confidence interval to estimate the mean time a general manager had spent with their current company: years (c) In general, increasing the confidence level the margin of error (width) of the confidence interval. (Enter: ''DECREASES'', ''DOES NOT CHANGE'' or ''INCREASES'', without the quotes.)

PLEASE ANSWER ALL QUESTIONS!

1. A manager is reviewing the number of time share tours given by employees at a sales office. She knows the standard deviation of the number of tours given is 10.5. A sample of 64 sales associates finds an average of 49.29 tours given per month. What is the standard error?

Select one:

a. 0.16

b. 1.31

c. 19.75

d. 6.16

e. 1.50

2. You are designing a study to find the average number of hotel rooms booked during bike week. If the standard deviation is estimated to be 15.8, how many samples must be taken to get an answer within 0.9 hotel rooms with 80% confidence?

Select one:

a. 503

b. 504

c. 505

d. 506

e. 507

According to national data, 20.7% of burglaries are cleared with arrests. A new detective is assigned to six different burglaries. What is the probability that at least one of them is cleared with an arrest?

Consider 4 species of plants in Point of Rocks Park where there are 160 White Pines, 80 Hackberries, 300 Pin Oaks, and 60 Tulip Poplars. What is the probability, and explain how you go about finding the probability, of randomly picking a Pin Oak out of this park.

The probability is . To get the probability, divide  by .

Dr. Baum is analyzing the distribution of two genus of trees, Acer and Quercus.  In the forest you are currently studying with her, there are 11 species in the genus Acer, while there are 87 species of the genus Quercus. How many possible combinations, consisting of one member from each genus, are possible?

. You are working on a bid to build two city parks a year for the next three years. This project requires the purchase of $180,000 of equipment that will be depreciated using straight-line depreciation to a zero book value over the 3-year project life. The equipment can be sold at the end of the project for $34,000. You will also need $20,000 in net working capital for the duration of the project. The fixed costs will be $16,000 a year and the variable costs will be $168,000 per park. Your required rate of return is 15 percent and your tax rate is 34 percent. What is the minimal amount you should bid per park?

A. $72,500
B. $128,600
C. $154,300
D. $189,100
E. $217,600

Please give detailed explanation about how to get each value

What are the different white-collar crimes? Representatives of hotels, restaurants, hotel and restaurant supply companies, and other businesses located in Portland, Oregon, organized an association to attract conventions to their city. Members were asked to make contributions equal to 1 percent of their sales to finance the association. To aid collections, hotel members, including Hilton Hotels Corporation, agreed to give preferential treatment to suppliers who paid their assessments and to curtail purchases from those who did not. This agreement violated federal antitrust laws. The United States sued the members of the association, including Hilton Hotels, for the crime of violating federal antitrust laws. Can a corporation be held criminally liable for the acts of its representatives? If so, what criminal penalties can be assessed against the corporation?

A study of the career paths of hotel general managers sent questionnaires to an SRS of 250 hotels belonging to major U.S. hotel chains. There were 127 responses. The average time these 127 general managers had spent with their current company was 8.92 years. (Take it as known that the standard deviation of time with the company for all general managers is 2.8 years.)

(a) Find the margin of error for a 90% confidence interval to estimate the mean time a general manager had spent with their current company: years

(b) Find the margin of error for a 99% confidence interval to estimate the mean time a general manager had spent with their current company: years

(c) In general, increasing the confidence level the margin of error (width) of the confidence interval. (Enter: ''DECREASES'', ''DOES NOT CHANGE'' or ''INCREASES'', without the quotes.)

A study of the career paths of hotel general managers sent questionnaires to an SRS of 240 hotels belonging to major U.S. hotel chains. There were 133 responses. The average time these 133 general managers had spent with their current company was 12.37 years. (Take it as known that the standard deviation of time with the company for all general managers is 1.5 years.) (a) Find the margin of error for a 90% confidence interval to estimate the mean time a general manager had spent with their current company: years (b) Find the margin of error for a 99% confidence interval to estimate the mean time a general manager had spent with their current company: years (c) In general, increasing the confidence level the margin of error (width) of the confidence interval. (Enter: ''DECREASES'', ''DOES NOT CHANGE'' or ''INCREASES'', without the quotes.)

A buffer is prepared by adding 150 mL of 1.0 M NaOH to 250 mL of 1.0 M NaH₂PO₄. How many moles of HCl must be added to this buffer solution to change the pH by 0.25 units? Assume the total volume remains unchanged at 400 mL.
For H₂PO₄^-, K_a = 6.3 × 10^-8.

Phoenix Corp. faltered in the recent recession but is recovering. Free cash flow has grown rapidly. Forecasts made in 2019 are as follows:

Phoenix’s recovery will be complete by 2024, and there will be no further growth in net income or free cash flow. a) Calculate the PV of free cash flow, assuming a cost of equity of 10%. b) Assume that Phoenix has 12 million shares outstanding. What is the price per share?

Since the state of emergency is set, a metal rod leads 1200 J off a 400 K reservoir to one with a temperature of 250 K for a certain amount time interval. Determine the entropy change before the hot reservoir; the cold reservoir; the metal rod and the whole system.

Determine the change in entropy for each of the following processes: 1.0 kg of water at a temperature of 100◦C transfers to steam with the temperature 100◦C at constant pressure.1.0 kg of ice at a temperature of 0 ° C transfers to water at a temperature 0◦C.1.0 kg of water with the temperature 0◦C is heated to 100◦C.