The manufacturer claims that your new car gets 25 mpg on the highway. You suspect that the mpg is more for your car. The 45 trips on the highway that you took averaged 26.5 mpg and the standard deviation for these 45 trips was 4 mpg. What can be concluded at the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: Select an answer v H: ?v Select an answer c. The test statistic ? (please show your answer to 3 decimal places.)
The manufacturer claims that your new car gets 25 mpg on the highway. You suspect that the mpg is more for your car. The 45 trips on the highway that you took averaged 26.5 mpg and the standard deviation for these 45 trips was 4 mpg. What can be concluded at the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: Select an answer v H: ?v Select an answer c. The test statistic ? (please show your answer to 3 decimal places.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The manufacturer claims that your new car gets 25 mpg on the highway. You suspect that the mpg is more
for your car. The 45 trips on the highway that you took averaged 26.5 mpg and the standard deviation for
these 45 trips was 4 mpg. What can be concluded at the a = 0.05 level of significance?
a. For this study, we should use Select an answer
b. The null and alternative hypotheses would be:
Ho: ? v
Select an answer
ens
H:?v
Select an answer V
re
c. The test statistic ? v
(please show your answer to 3 decimal places.)
%3D
d. The p-value
(Please show your answer to 4 decimal places.)
%3D
e. The p-value is ? va
f. Based on this, we should Select an answer v the null hypothesis.
g. Thus, the final conclusion is that ...
OThe data suggest that the sample mean is not significantly more than 25 at a 0.05, so there
is statistically insignificant evidence to conclude that the sample mean mpg for your car on the
highway is more than 26.5.
%3D
O The data suggest that the population mean is not significantly more than 25 at a = 0.05, so
there is statistically insignificant evidence to conclude that the population mean mpg for your
car on the highway is more than 25.
OThe data suggest that the populaton mean is significantly more than 25 at a
is statistically significant evidence to conclude that the population mean mpg for your car on
the highway is more than 25.
h. Interpret the p-value in the context of the study.
f the population mean mpg for your car on the highway is 25 and if you take another 45 trips
on the highway then there would be a 0.78043611% chance that the population mean mpg for
your car on the highway would be greater than 25.
Co search
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