Following are age and price data for

88

randomly selected ambulances between 1 and 6 years old.​ Here, x denotes​ age, in​ years, and y denotes​ price, in hundreds of dollars. Use the information to complete parts​ (a) through​ (f).

a. Find the regression equation for the data points.

ModifyingAbove y with caretyequals=nothingplus+nothingx

​(Round to two decimal places as​ needed.)

b. Graph the regression equation and the data points.

A.

080500AgePrice

A scatterplot has a horizontal axis labeled Age from 0 to 8 in increments of 2 and a vertical axis labeled Price from 0 to 500 in increments of 100. The following points are plotted: (1, 400); (2, 370); (2, 360); (4, 320); (5, 300); (6, 250); (6, 280); (6, 270). A line falls from left to right and passes through the points (0, 420) and (5, 290). The line comes close to all of the points in the scatterplot and passes above some of the points and below others. All coordinates are approximate.

B.

080500AgePrice

A scatterplot has a horizontal axis labeled Age from 0 to 8 in increments of 2 and a vertical axis labeled Price from 0 to 500 in increments of 100. The following points are plotted: (1, 280); (2, 300); (2, 320); (4, 360); (5, 280); (6, 270); (6, 320); (6, 280). A line rises from left to right and passes through the points (0, 300) and (5, 310). The line passes above some of the plotted points and below others. All coordinates are approximate.

C.

080500AgePrice

A scatterplot has a horizontal axis labeled Age from 0 to 8 in increments of 2 and a vertical axis labeled Price from 0 to 500 in increments of 100. The following points are plotted: (1, 320); (2, 270); (2, 280); (4, 400); (5, 250); (6, 300); (6, 360); (6, 370). A line falls from left to right and passes through the points (0, 380) and (5, 310). The line passes above some of the plotted points and below others. All coordinates are approximate.

D.

080500AgePrice

A scatterplot has a horizontal axis labeled Age from 0 to 8 in increments of 2 and a vertical axis labeled Price from 0 to 500 in increments of 100. The following points are plotted: (1, 250); (2, 270); (2, 280); (4, 300); (5, 320); (6, 360); (6, 370); (6, 400). A line rises from left to right and passes through the points (0, 220) and (5, 350). The line comes close to all of the points in the scatterplot and passes above some of the points and below others. All coordinates are approximate.

c. Describe the apparent relationship between the two variables.

A.

Price tends to increase as age increases.

B.

Price tends to decrease as age increases.

C.

Price remains constant as age increases.

D.

There is no apparent relationship between age and price.

d. Identify the predictor and response variables.

A.

The predictor variable is price and the response variable is age.

B.

The predictor variable is ambulance and the response variable is age.

C.

The predictor variable is ambulance and the response variables are age and price.

D.

The predictor variable is age and the response variable is price.

e. Identify outliers and potential influential observations.

A.

There are no outliers and no influential observations.

B.

There is one outlier and no influential observations.

C.

There are no outliers and one influential observation.

D.

There are one or more outliers and influential observations.

f. Predict the value of the response variable for a​ 3-year-old ambulance.

The predicted price of a​ 3-year-old ambulance is

​$nothing.

​(Round to the nearest hundred dollars as​ needed.)

Click to select your answer(s).

Using Java preferably with Eclipse

Task:

Write a program that creates a class Apple and a tester to make sure the Apple class is crisp and delicious.

Instructions:

First create a class called Apple

The class Apple DOES NOT HAVE a main method

Some of the attributes of Apple are

Type: A string that describes the apple.  It may only be of the following types:

 Red Delicious

 Golden Delicious

 Gala

 Granny Smith

Weight: A decimal value representing the apple’s weight in kilograms.  The weight must be between 0kg and 2kg

Price: The price per apple.  This must be a non­negative decimal value

Create the Default Constructor – sets everything to default values and has no parameters

Create Accessors and Mutators for each instance variable

MAKE SURE THE MUTATORS CHECK FOR VALID VALUES!

Create the following Methods

toString() : Displays the values of the instance variables on the console.

Finally create a class called AppleTester

This class DOES HAVE a main method

Create at least 3 different types of apples

Test if the accessors, mutators, and other methods work as intended.

Sample Output:

Welcome to the apple tester!!!

Creating the first apple!

Default values of the first apple object:

Type: Gala

Weight: 0.5 kg

Price: $0.88

Creating the second apple object!

Enter the type of the second apple object:

Granny Smith

Enter the weight of the second apple object:

0.7

Enter the price of the second apple object:

1.45

Values of the second apple object:

Type: Granny Smith

Weight: 0.7 kg

Price: $1.45

Creating the third apple object!

Enter the type of the third apple object:

Banana

Invalid value for type!

Enter the weight of the third apple object:

3.5

Invalid value for weight!

Enter the price of the third apple object:

­2.22

Invalid value for price!

Printing the third apple’s values which should have not changed from the default values

Retrieving the third apple object's type:Gala

Retrieving the third apple object's weight:0.5 kg

Retrieving the third apple object's price:$0.88

What is $100 today, plus $100 at the end of 1 year, plus $200 at the end of 2 years, plus $300 at the end of 3 years, worth to you today, given a discount rate of 4%

What is $100 today, plus $100 at the end of 1 year, plus $200 at the end of 2 years, plus $300 at the end of 3 years, worth to you at the end of year 3, given a discount rate of 4%?

Ten, $100 bonds with a carrying value of $1,280 are converted into 100 shares of $10 par value common stock. Currently, the common stock has a market value of $7 per share. What is the correct credit part of the journal entry for the conversion?

What is the pH of a 100 mL solution of 100 mM acetic acid at pH 3.2 following addition of 5 mL of 1 M NaOH? The pKa of acetic acid is 4.70.

A) 3.20.

B) 4.65.

C) 4.70.

D) 4.75.

E) 9.60.

Let n1 = 100, X1 = 43, n2 = 100, and X2 = 30. at 0.05 level of significance is there evidence of a significant difference between the two population proportions

Consider an MPT with the following characteristics:

• Number of mortgages in the pool: 100
• All 100 mortgages are fully amortizing 15 year FRM with monthly payments
• All mortgages have a 4% interest rate
• Average mortgage balance: $180,000
• Prepayment is according to 200% PSA
• There is no servicing fee
• The beginning pool balance in month 15 is $16,356,436.86

a) What is the regularly scheduled payment in month 15?

b) How much of the scheduled payment received is attributable to interest in month 15?

c) How much of the scheduled payment received is attributable to principal in month 15?

d) What is the dollar amount of the prepayment in month 15?

e) How much cash do investors get in month 15?

f) Ariel has a 5% share in this MPT. How much will he receive in month 15?

g) What is the pool balance at the end of month 15 (beginning of month 16)?

100 mL of a 100 mM Tris at pH 7.8 is diluted to 1L. What is the resulting pH?