![subject](/tpl/images/cats/mat.png)
Mathematics, 07.04.2020 15:28 SamaraP
Suppose that an automobile manufacturer advertises that its new hybrid car has a mean gas mileage of 50 miles per gallon. You take a simple random sample of n = 30 hybrid vehicles and test their gas mileage. You find that in this sample, the average is 47 miles per gallon with a standard deviation of 5.5 miles per gallon. Is there enough evidence to support the advertised claim using α = 0.05? What is the null and alternative hypothesis for this problem?
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 13:00
Solve 5 tan x = 5√(3) for 0° ≤ x ≤ 180°. a. 60° b. 150° c. 30° d. 120°
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
Use the net as an aid to compute the surface area of the triangular prism. a) 550 m2 b) 614 m2 c) 670 m2 d) 790 m2
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00
Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:20
Triangle xyz, with vertices x(-2, 0), y(-2, -1), and z(-5, -2), undergoes a transformation to form triangle x? y? z? , with vertices x? (4, -2), y? (4, -3), and z? (1, -4). the type of transformation that triangle xyz undergoes is a . triangle x? y? z? then undergoes a transformation to form triangle x? y? z? , with vertices x? (4, 2), y? (4, 3), and z? (1, 4). the type of transformation that triangle x? y? z? undergoes is a .
Answers: 2
You know the right answer?
Suppose that an automobile manufacturer advertises that its new hybrid car has a mean gas mileage of...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 26.10.2020 23:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 26.10.2020 23:40
![question](/tpl/images/cats/mat.png)
Mathematics, 26.10.2020 23:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 26.10.2020 23:40
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 26.10.2020 23:40
![question](/tpl/images/cats/mat.png)
Mathematics, 26.10.2020 23:40
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
English, 26.10.2020 23:40
![question](/tpl/images/cats/mat.png)
Mathematics, 26.10.2020 23:40
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)