Draw an activity diagram to represent the Purchasing process described below.

The Purchasing department of a company handles purchase requests from other departments in the company.

Each request is handled by a case worker within the Purchasing department.

The case worker receives a request and monitors it until a purchase order is made or until the request is reported to the manager of the department.

For the purchase of products with the total cost under $2000, the case worker writes a purchase order, and sends it to one of the approved vendors.

For purchase requests over $2000, the case worker must first send them out for bids from several vendors that supply the product. After one week, if there are at least four bids returned, the case worker selects one bid, writes a purchase order, and sends it to the vendor. Otherwise, the case worker reports the request to the manager.

A pumpkin farmer weighed a simple random sample of sizen= 20 pumpkins, with these results:9.6, 8.8, 5.1, 9.7, 9.1, 8.9, 8, 9.2, 2.7, 9.1, 8.5, 7.3, 9.3, 9.6, 4.1, 9.9, 7.6, 9, 7.2, 8.5

1.how to use R to perform the bootstrap with 2000 resamplings to create a90% confidence interval forμ

2.how to know whether the true mean pumpkin weight for this pumpkin farmer’s patchis greater than 7.2. Conduct a bootstrap hypothesis test with 2000 resamplings at a significance levelα= 0.05.

3.how to conduct a hypothesis test at levelα= 0.05 to see whether we can assert the data are strong evidencethe true median weight for this pumpkin farmer’s patch is greater than 7.2.

Draw an activity diagram to represent the Purchasing process described below. The Purchasing department of a company handles purchase requests from other departments in the company. Each request is handled by a case worker within the Purchasing department. The case worker receives a request and monitors it until a purchase order is made or until the request is reported to the manager of the department. For the purchase of products with the total cost under $2000, the case worker writes a purchase order, and sends it to one of the approved vendors. For purchase requests over $2000, the case worker must first send them out for bids from several vendors that supply the product. After one week, if there are at least four bids returned, the case worker selects one bid, writes a purchase order, and sends it to the vendor. Otherwise, the case worker reports the request to the manager.

Please show the detail work

1. How long will an E cylinder last if the flow rate is set at 2, and there is 2000 PSIG on the pressure gauge?

2. What is the total flow for a 24% venture mask set at 5 liters per minute at the flow meter?

3. How long will an H cylinder last if the flow rate is set at 15, and there is 2000 PSIG on the pressure gauge?

4. What is the total flow for a 30% venture mask set at 20 liters per minute at the flow meter?

5. How long will an H cylinder last if the flow rate is set at 10, and there is 1000 PSIG on the pressure gauge?

6. What is the total flow for a 40% venture mask set at 10 liters per minute at the flow meter?

John polled the Russian public about Vladimir Putin's popularity for a very long time before the 2000 election. The proportions in this problem come from their findings; the sample sizes are made up but are consistent with their polling techniques.

1. (a) In May 2000, 478 of 783 Russians surveyed had a “highly favorable” or “somewhat favorable” opinion of Vladimir Putin. Test the hypothesis that less than 64% of Americans had an opinion this high of Vladimir Putin's at a significance level of α = .1.

2. (b) In August 1996, 41% of 635 Russians surveyed had a “highly favorable” opinion of Vladimir Put-on; in August 1997, 33% of 696 did. Test the hypothesis that this opinion was held by at least 5% more of the American public in August 1966 than it was in August 1967 at a significance level of α = .05.

Despite the growth in digital entertainment, the nation’s 400 amusement parks have managed to hold on to visitors. A manager collects data on the number of visitors (in millions) to amusement parks in the United States. A portion of the data is shown in the accompanying table.

SOURCE: International Association of Amusement Parks and Attractions.
Click here for the Excel Data File

a. Estimate the linear trend model to make forecasts for 2008. (Round your answers to 2 decimal places.)

yˆ =

b. Estimate the exponential trend model to make forecasts for 2008. (Round your answers to 2 decimal places.)

yˆ =

Can you provide solution in the Excel using Solver for the below problem ?

On Monday morning, you have $3000 in cash on hand. For the next seven days, the following cash requirements must be met: Monday, $5000; Tuesday, $6000; Wednesday, $9000; Thursday, $2000; Friday, $7000; Saturday, $2000; Sunday, $3000. At the beginning of each day, you must decide how much money (if any) to withdraw from the bank. It costs $10 to make a withdrawal of any size. You believe that the opportunity cost of having $1 of cash on hand for a year is $0.20. Assume that opportunity costs are incurred on each day’s ending balance ($0.20/365). Determine how much money you should withdraw from the bank during each of the next seven days.

For developing countries in Africa and the Americas, let p₁ and p₂ be the respectiveproportions of babies with a low birth weight (below 2500 grams). A randomsample of n₁ = 2000 African women yielded y₁ = 750 with nutritional anemia anda random sample of n₂ = 2000 women from the Americas yielded y₂ = 650 womenwith nutritional anemia. We shall test H₀: p₁ = p₂ against the alternative hypothesisH₁: p₁ > p₂ at α = 0.05.

1. What is the type of the test?

a) Right-tailed

b) Left-tailed

c) Two-tailed

2. Calculate Observed Test Statistic

3. Find the P-value of the test

4.Find the Critical Value of Critical Region of the Test

5. Draw Your Conclusion of the Test at α = 0.05

a) Fail to Reject H0

b) Reject H0

1. Using the following lines of data, create a temporary SAS data set called ThreeDates. Each line of data contains three dates, the first two in the form mm/dd/yyyy descenders and the last in the form ddmmmyyyy. Name the three date variables Date1, Date2, and Date3. Format all three using the MMDDYY10. format. Include in your data set the number of years from Date1 to Date2 (Year12) and the number of years from Date2 to Date3 (Year23). Round these values to the nearest year. Here are the lines of data (note that the columns do not line up):

01/03/1950 01/03/1960 03Jan1970

05/15/2000   05/15/2002   15May2003

10/10/1998 11/12/2000    25Dec2005