Question 1 (1 point)

Suppose you are a civil engineer, specializing in traffic volume control for the City of Grand Rapids. Your department has been receiving a multitude of complaints about traffic wait times for a certain intersection in the heart of downtown. To see if these claims are valid, you want to monitor the true average wait time at that intersection. Over the course of a few months, you record the average number of minutes a car waits at the intersection between 4:00 PM and 5:00 PM. With a sample size of 14 cars, the average wait time is 6.476 minutes with a standard deviation of 1.6154 minutes. Construct a 99% confidence interval for the true average wait time for a car at the intersection between 4:00 PM and 5:00 PM.

Question 1 options:

Question 2 (1 point)

In a climate survey, it was determined that in a random sample of 19 days, the average temperature in Kalamazoo at 2:00 PM in the months of July and August is 73.41 degrees with a standard deviation of 3.142 degrees. Using this information, a 99% confidence interval for the average is (71.34, 75.48). Which of the following is the appropriate interpretation of this interval?

Question 2 options:

Question 3 (1 point)

Not all Walmart stores carry the same merchandise. In fact, in an audit of 1665 random stores, only 521 carried snowsuits seasonally. What is the 99% confidence interval estimate for the total number of Walmart stores that carry snowsuits?

Question 3 options:

Question 4 (1 point)

You work for a pharmaceutical company that is testing a new cholesterol drug. The proportion of patients on the previous drug who had a positive treatment was 0.329. You want to see if the new drug is more effective than the previous drug. You conduct a sample of 99 patients on the new drug and find that 59 have had a positive treatment effect. The 99% confidence interval is ( 0.4689 , 0.723 ). What is the best conclusion you can make of those listed below?

Question 4 options:

Until now, you have had to leave your team management program running on your computer indefinitely since you did not want to lose the list of players. Finally, you are ready to add the components to your team management program that will allow you to store the player’s information on your computer’s hard drive, thus, allow you to shut down your program without losing your data.

You will need to modify your program to:

1. include a Save option in the main menu which will prompt the program to write the player’s data to a text file.
2. modify the startup code so that the program calls a function that reads the player’s data from the text file into the list of member objects.

Tips: Think about how you are going to write the data to the text file when you create the load function. Your write function needs to read in the data in the same pattern as the load function, otherwise the data will get jumbled.

Sample output:

C:\>python week6.py

Welcome to the Team Manager

===========Main Menu===========

1. Display Team Roster.

2. Add Member.

3. Remove Member.

4. Edit Member.

5. Save Data.

6. Load Data.

9. Exit Program.

Selection> 2

Enter new member's name: Nathan

Contact phone number: 505-908-0670

Jersey number: 21

===========Main Menu===========

1. Display Team Roster.

2. Add Member.

3. Remove Member.

4. Edit Member.

5. Save Data.

6. Load Data.

9. Exit Program.

Selection> 2

Enter new member's name: Bobby

Contact phone number: 541-241-0670

Jersey number: 44

===========Main Menu===========

1. Display Team Roster.

2. Add Member.

3. Remove Member.

4. Edit Member.

5. Save Data.

6. Load Data.

9. Exit Program.

Selection> 5

Filename to save: members.txt

Saving data...

Data saved.

===========Main Menu===========

1. Display Team Roster.

2. Add Member.

3. Remove Member.

4. Edit Member.

5. Save Data.

6. Load Data.

9. Exit Program.

Selection> 9

Exiting Program...

C:\>python week6.py

Welcome to the Team Manager

===========Main Menu===========

1. Display Team Roster.

2. Add Member.

3. Remove Member.

4. Edit Member.

5. Save Data.

6. Load Data.

9. Exit Program.

Selection> 1

No current members in memory.

===========Main Menu===========

1. Display Team Roster.

2. Add Member.

3. Remove Member.

4. Edit Member.

5. Save Data.

6. Load Data.

9. Exit Program.

Selection> 6

Filename to load: members.txt

Loading data...

Data Loaded Successfully.

===========Main Menu===========

1. Display Team Roster.

2. Add Member.

3. Remove Member.

4. Edit Member.

5. Save Data.

6. Load Data.

9. Exit Program.

Selection> 1

Name: Bobby

Phone: 541-241-0670

Jersey Number: 44

Name: Nathan

Phone: 505-908-0670

Jersey Number: 21

===========Main Menu===========

1. Display Team Roster.

2. Add Member.

3. Remove Member.

4. Edit Member.

5. Save Data.

6. Load Data.

9. Exit Program.

Selection>9

Exiting Program...

1- the abortion definition as anatomically

2- abortion definition as legal issue

3- abortion prospective as legal and ethical issue with details

4- propose 2 case study on abortion

What lump some of money deposited today will grow to a future value of $9,280 at 9 3/4% compounded monthly for 2 1/2 years? Please show work.

1. Explain the different concepts that relate to antennas.

2. Describe how IR and EIRP are different.

3. Differentiate between the 2 antenna coverage patterns.

4. Explain MIMO.

A triangular number is the sum of the n natural numbers from 1 to n.

For example:

• The triangular number for 3 is 1 + 2 + 3 = 6
• The triangular number for 7 is 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28

Write a program segment (using a loop), that calculates and then prints the integer n and its triangular number.

This is the final grade and number of absences for a set of students. Regress grade on absences. Use a 95% confidence level. Give the equation of estimation. Interpret the equation. According to the regression, now much does a tardy (= 1/2 an absence) change your grade? Evaluate the model. What evaluation criterion did you use? Could this be a case of reverse causality? If so, give an example of how the causation could run in the opposite direction.

a)

Let y be the solution of the equation

y ′ = sqrt(1 − y^2) satisfying the condition  y ( 0 ) = 0.

Find the value of the function  f ( x ) = sqrt(2)*y ( x ) at x = π/4.

(The square root in the right hand side

of the equation takes positive values and − 1 ≤ y ≤ 1)

b)

Let y be the solution of the equation

y ′ = 5 x^4 sin ⁡(x^5) satisfying the condition y ( 0 ) = − 1.

Find y ( (π)^1/5 ).

c)

Find the largest value of the parameter r

for which the function y = e^(rx) is a solution of the

equation y ″ − 12 y ′ + 27 y = 0.

d)

Let y ′ = − 3x^2*e^(-x^3) and let y ( 0 ) = 1.

Find  ln ⁡ ( y ( 2 ) ).

e)

Find the smallest value of the parameter r

for which the function y = e^(rx) is a solution of the

equation y ″ − 12 y ′ + 27 y = 0.

Concept Map: Diversity of capacitor types used in electronics.

To Do:

1) Cite 4 examples of capacitor’s use in electronics.

2) What type of capacitor is each of the 4 you cite? Suggest how each is manufactured