1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Burka [1]
3 years ago
14

Accountants at the Tucson​ firm, Larry​ Youdelman, CPAs, believed that several traveling executives were submitting unusually hi

gh travel vouchers when they returned from business trips.​ First, they took a sample of 200 vouchers submitted from the past year. Then they developed the following​multiple-regression equation relating expected travel cost to number of days on the road ​(x1​) and distance traveled​(x2​) in​ miles:
y= ​$90.00 ​+ $46.50X1​+ ​0.35X 2.

The coefficient of correlation for the model is 0.64.

​a) If Donna Battista returns from a 340​-mile trip that took her out of town for 5 ​days, the expected amount that she should claim as expense =$ __________ (round your response to two decimal​places).

​b) After the 340​-mile and 55​-day ​trip, Battista submitted a reimbursement request for $685​, which is different than the predicted value. The accountant should question/not question the voucher as the request is much higher than expected/within expectations.

c) Additional variables that could be included in the model are​ (select the choice that has all the factors you would​consider)

A. Type of travel (air/car)

B. Gender of the executive (male/female)

C. Dress code (formal/business casual)

The percentage of variation in the trip cost that can be explained by the model​ = ________​% ​(round your
Mathematics
1 answer:
77julia77 [94]3 years ago
6 0

Answer:

a) Y= 90 +46.50(5) +0.35 (340) =441.50

b) The accountant should not question the voucher as the request is much higher than expected.

c) We can add the following variables

d) The percentage of variation in the trip cost that can be explained by the model​ = (0.64)^2 =0.4096 or 40.96%

A. Type of travel (air/car)

B. Gender of the executive (male/female)

The last option is not too important since we are analyzing the traveling executives not the type of business

Step-by-step explanation:

Part a

For this case we have the multiple regression model given by:

Y= 90 +46.50 x_1 +0.35 x_2

Where x_1 represent the number of days on the road and x_2 the distance traveled in miles.

And we want to find the expected amount from a 340​-mile trip that took her out of town for 5 ​days, so we just need to replace x1= 5 and x2=340 and we got:

Y= 90 +46.50(5) +0.35 (340) =441.50

Part b

The expected value taking in count that x1 = 5 and y = 340 is:

Y= 90 +46.50(55) +0.35 (340) =441.50

And the difference from the obtained value is : 685-441.50=243.5

So then the correct answer would be:

The accountant should not question the voucher as the request is much higher than expected.

Part c

We can add the following variables

A. Type of travel (air/car)

B. Gender of the executive (male/female)

The last option is not too important since we are analyzing the traveling executives not the type of business

Part d

The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.

The coefficient of determination "is a measure used in statistical analysis that assesses how well a model explains and predicts future outcomes. It is indicative of the level of explained variability in the data set".

The percentage of variation in the trip cost that can be explained by the model​ = (0.64)^2 =0.4096 or 40.96%

You might be interested in
Write an equation that represents the line. Use exact numbers
aev [14]

Answer:

y= 2/3x + 1.25

Step-by-step explanation:

I can't see the exact number but it's probably 1.25. Sorry if it's wrong :)

5 0
3 years ago
Find mABC<br><br> A-54<br> B-135<br> C-15<br> D-126
bagirrra123 [75]
It’s B



Glad I could help
7 0
2 years ago
Jessie paid $43.75 for 5 movie tickets. Each ticket cost the same amount. What was the cost of each movie ticket in dollars and
N76 [4]
If I’m not wrong each ticket was 8.75
Because 43.75 divided by 5= 8.75:)
5 0
3 years ago
Read 2 more answers
I WILL GIVE YOU BRAINLIEST!!
ollegr [7]

Answer:

32 goldfish

Step-by-step explanation:

Given:

  • Number of fish tanks = 8
  • Volume of water per fish tank = 5,544 in³
  • Water required by 1 goldfish = min 1,386 in³

Number of fish per tank = water per tank ÷ water per goldfish

                                        = 5544 ÷ 1386

                                        = 4

Therefore, each tank can hold a maximum of 4 goldfish.

Greatest number of goldfish = number of tanks × fish per tank

                                               = 8 × 4

                                               = 32

3 0
2 years ago
The 3rd and 6th term of a geometric progression are 9/2 and 243/16 respectively find the first term, common ratio, seventh term​
sashaice [31]

Answer:

Hello,

Step-by-step explanation:

Let\ (u_n)\ the\ geometric\ progression.\\\\r\ is\ the\ common\ ratio.\\\\u_3=u_0*r^3\\u_6=u_0*r^6\\\\\dfrac{u_6}{u_3} =r^3=\dfrac{\frac{243}{16} }{\frac{9}{2} } =\dfrac{27}{8} =(\frac{3}{2} )^3\\\\\boxed{r=\dfrac{3}{2} }\\\\\\u_3=u_1*r^2 \Longrightarrow\ u_1=\dfrac{u_3}{r^2} =\dfrac{\frac{9}{2} }{(\frac{3}{2^2}) } =2\\\\\\u_7=u_6*\dfrac{3}{2} =\dfrac{729}{32}

5 0
3 years ago
Other questions:
  • What’s the answer need it ASAP
    14·2 answers
  • A recipe calls for 4 parts chocolate chips for every 6 parts of nuts. Callum makes the recipe for a party and uses 18 tablespoon
    8·1 answer
  • This net can be folded to make a square pyramid. What is the surface area of the pyramid?
    5·1 answer
  • Alfred draws candles randomly from a pack containing 4 colored candles of the same shape and size. There are 2 red candles, 1 gr
    6·1 answer
  • PLEASE HELP precal!
    8·1 answer
  • If I get 10 coins every five seconds and I have 56,150 coins. How long have I spent collecting coins?
    13·1 answer
  • Write at least three equivalent fractions for each fraction below
    10·1 answer
  • Kyle works at a donut​ factory, where a​ 10-oz cup of coffee costs 95¢​, a​ 14-oz cup costs​ $1.15, and a​ 20-oz cup costs​ $1.5
    6·2 answers
  • Solve the equation <br><br> -3x - 5 =16 <br><br> What does x =??
    10·2 answers
  • How to solve for axis of symmetry for y=(x+2)(x-4)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!