A
Mark brainliest please
Hope o
Answer:
One tailed
To conclude if there is an increase in the mean gas mileage due to new type of tire.
Step-by-step explanation:
We are given the following in the question:
The manufacture wants to compare increase in the mean gas mileage.
Population mean = 32 miles per gallon
Thus, the manufacture could carry a hypothesis test to compare mean.
A one tailed test (z-test or t-test) based on the information can be used to compare the increase in mean.
Thus,
The automotive manufacturer should perform a one tailed hypothesis test to conclude if there is an increase in the mean gas mileage due to new type of tire.
From this, we can see that the total amount of students being asked = 12 + 8 + 6 + 4 = 30.
12 of 30 like rock, in percentages that is 12/30 = 40$
Full circle has 360 degrees.
40% * 360 degrees = 144 degrees
144 degrees should represent rock music on a pie chart.
Hope this helps!
Your answer is, 198.575 math might be off so let me check.
Answer:
Step-by-step explanation:
Each question has 4 options with only one correct answer and all other incorrect answers. Student is equally likely to pick any outcome in any given question. Hence, probability of choosing correct answer is 1/4 = 0.25
mark this as brainly pls.....
