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
Vera_Pavlovna [14]
3 years ago
15

Fueleconomy.gov, the official US government source for fuel economy information, allows users to share gas mileage information o

n their vehicles. The histogram below shows the distribution of gas mileage in miles per gallon (MPG) from 14 users who drive a 2012 Toyota Prius. The sample mean is 53.3 MPG and the standard deviation is 5.2 MPG. Note that these data are user estimates and since the source data cannot be verified, the accuracy of these estimates are not guaranteed.
a. We would like to use these data to evaluate the average gas mileage of all 2012 Prius drivers. Do you think this is reasonable? Why or why not?
b. The EPA claims that a 2012 Prius gets 50 MPG (city and highway mileage combined). Do these data provide strong evidence against this estimate for drivers who participate on fueleconomy.gov? Note any assumptions you must make as you proceed with the test.
c. Calculate a 95% confidence interval for the average gas mileage of a 2012 Prius by drivers who participate on fueleconomy.gov.
Mathematics
1 answer:
Ne4ueva [31]3 years ago
3 0

Answer:

The histogram shows near normality,the sample is less than 10% of the population,however we don't know if sample is random or not.

You might be interested in
PLEASEEE HELPPPP <br> thanks if u helpp
shusha [124]

Answer:

1)It crosses through the middle of the isosceles triangle cutting it into two equal parts Point p on the end

Point P is also either at the top or bottom of the perpendicular bisector which cuts between L and M

5 0
2 years ago
Select all possible equivalent expressions below
const2013 [10]

Answer:the 2nd the 3rd the 5th. Maybe the first.

Step-by-step explanation:

3 0
2 years ago
Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. His sister states that the expression should be x
tatuchka [14]
Gabriel and his sister are in apparent agreement. There is insufficient information to tell whether they are correct or not.

Gabriel's representation is a more compact form of his sister's representation, but they mean the same thing.*

_____
* In some computer applications, one gets a different result from computing 2.5x than from computing x + x + 0.5x. This has to do with the way numbers are represented in the computer and the way they are rounded during multiplication and/or addition. For the purposes of algebra, the expressions mean the same thing.
3 0
3 years ago
Read 2 more answers
Square root of 50
sleet_krkn [62]

Answer:

7.05 simplified rational

6 0
3 years ago
Read 2 more answers
Factor completely:<br> 3x³- 3x- 36
kotegsom [21]

Answer:

The answer to your question is 3(x³ - x - 12)

Step-by-step explanation:

Polynomial                  3x³ - 3x - 36

Step 1. Look for like terms to factor

                                    3  -3   36    2

                                    3  -3    18    2

                                    3  -3      9   3

                                     1  -1       3    3

                                                   1

Like term = 3

Step 2. factor 3

                                 3(x³ - x - 12)    This is the result, it can not factor more

                                                          because the first term has a power of 3,

                                                          if it were 2, the polynomial could factor

                                                          more.

4 0
3 years ago
Other questions:
  • the water level in an ocean bay changes at a average rate of three meters per hour at this rate how many hours would it take for
    5·2 answers
  • What is the minimum value of the quadratic function?
    13·1 answer
  • Click on the value for p that makes this<br> inequality true.<br><br><br><br> Pls I need this
    10·2 answers
  • Probability can be calculated using the formula
    14·1 answer
  • the diagram shows a triangle 3x-1,3x and 4x-1. The perimeter of the triangle is 70 cm. The area of the triangle is a^2 cm. What
    13·1 answer
  • DO NOT ANSWER WITH BITLY LINKS! Find the measure of the arc or central angle indicated. Assume that lines that appear to be diam
    10·1 answer
  • Freeeeeee points! :)
    10·2 answers
  • Someone help me pleaseeee
    6·1 answer
  • Find the value <br><img src="https://tex.z-dn.net/?f=%282x%290" id="TexFormula1" title="(2x)0" alt="(2x)0" align="absmiddle" cla
    13·1 answer
  • A sphere has a radius of 9 inches. What is the volume of the sphere in cubic inches in terms of π?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!