2. Due to increasing fuel prices a taxi company tested a new technology that is said increase fuelefficiency. They randomly chose 12 cars and measured how many kilometers travelled per literwith and without the technology. The results were given below. Is there sufficient evidence thatthe technology effectively increased fuel efficiency? Use a-0.1.CARWITHOUTWITHTECHNOLOGYTECHNOLOGY151821616317184171917176.181571818182091720101615111820121716In words, define the random variable X1 =b. Но:Ha:d. The level of significance ise. Determine the test statistic using the data (show solution).f. Provide the decision rule of the test.g. Decision:h. Write a clear conclusion using the format:a.and X2 =с.Ai. sufficient evidence to reject the null hypothesis that G at <_% level of significance>.

Given: Significance level α=0.1 Claim: Technology effectively increased fuel efficiency.

Answered: a. In words, define the random variable…

Math

Statistics

a. In words, define the random variable X1 = b. Họ: and X2 = с. На

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 2CYU

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Question

2. Due to increasing fuel prices a taxi company tested a new technology that is said increase fuel
efficiency. They randomly chose 12 cars and measured how many kilometers travelled per liter
with and without the technology. The results were given below. Is there sufficient evidence that
the technology effectively increased fuel efficiency? Use a-0.1.
CAR
WITHOUT
WITH
TECHNOLOGY
TECHNOLOGY
15
18
2
16
16
3
17
18
4
17
19
17
17
6.
18
15
7
18
18
18
20
9
17
20
10
16
15
11
18
20
12
17
16
In words, define the random variable X1 =
b. Но:
Ha:
d. The level of significance is
e. Determine the test statistic using the data (show solution).
f. Provide the decision rule of the test.
g. Decision:
h. Write a clear conclusion using the format:
a.
and X2 =
с.
A
i. <There is / There is no> sufficient evidence to reject the null hypothesis that G
<insert null hypothesis in words> at <_% level of significance>.

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