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 sample standard deviation is 5.2 MPG. 4 40 45 50 55 60 65 Mileage (in MPG) The EPA claims that a 2012 Toyota Prius gets 50 MPG (city and highway mileage combined). Does the sample data provide strong evidence against the EPA claim? (a) The hypotheses for the test are: O Ho: µ = 50 Ha: p = 50 O Ho: µ = 50 Ha: p < 50 O Ho: µ = 50 Ha: p > 50 (b) There are degrees of freedom for this test. (c) The test statistic is: (please round to two decimal places) (d) The p-value for this hypothesis test is: (please round to four decimal places) (e) The conclusion for the hypothesis test is: CO
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 sample standard deviation is 5.2 MPG. 4 40 45 50 55 60 65 Mileage (in MPG) The EPA claims that a 2012 Toyota Prius gets 50 MPG (city and highway mileage combined). Does the sample data provide strong evidence against the EPA claim? (a) The hypotheses for the test are: O Ho: µ = 50 Ha: p = 50 O Ho: µ = 50 Ha: p < 50 O Ho: µ = 50 Ha: p > 50 (b) There are degrees of freedom for this test. (c) The test statistic is: (please round to two decimal places) (d) The p-value for this hypothesis test is: (please round to four decimal places) (e) The conclusion for the hypothesis test is: CO
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question

Transcribed Image Text:The EPA claims that a 2012 Toyota Prius gets 50 MPG (city and highway mileage combined). Does the sample
data provide strong evidence against the EPA claim?
(a) The hypotheses for the test are:
O Ho: µ = 50
На: и 50
O Ho: µ = 50
На: <50
O Ho: µ = 50
На: и> 50
(b) There are
degrees of freedom for this test.
(c) The test statistic is:
(please round to two decimal places)
(d) The p-value for this hypothesis test is:
(please round to four decimal
places)
(e) The conclusion for the hypothesis test is:
O Since p<a we fail to reject the null hypothesis
O Since p<a we reject the null hypothesis in favor of the alternative
O Since p 2 a we do not have enough evidence to reject the null hypothesis
O Since p 2 a we reject the null hypothesis in favor of the alternative
O Since p z a we accept the null hypothesis

Transcribed Image Text: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 sample standard deviation is 5.2 MPG.
4 -
40
45
50
55
60
65
Mileage (in MPG)
The EPA claims that a 2012 Toyota Prius gets 50 MPG (city and highway mileage combined). Does the sample
data provide strong evidence against the EPA claim?
(a) The hypotheses for the test are:
O Ho: p = 50
Ha: u z 50
O Ho: µ = 50
Ha: u < 50
O Ho: u = 50
Ha: p > 50
(b) There are
degrees of freedom for this test.
(c) The test statistic is:
(please round to two decimal places)
(d) The p-value for this hypothesis test is:
(please round to four decimal
places)
(e) The conclusion for the hypothesis test is:
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