Answer:
z=0.5084
p=0.2809
Step-by-step explanation:
Since number of tires tested for breaking distance is enough (>30), the standardized test statistic is calculated by the formula:
z= where
- X is the mean breaking distance in the sample (78)
- M is the mean breaking distance (75)
- s is the standard deviation (5.9)
- N is the sample size
Putting the numbers in the formula:
z= =0.5084 and corresponding p value is:
p=0.28
Answer:
If you entered the function correctly there is not a range
Step-by-step explanation:
Answer:
52 minutes
Step-by-step explanation:
Given in question as
Men 1 = 5 Men 2 = 20
Work 1 = 5 Work 2 = 20
Time 1 = 52 min Time 2 = T 2
Now , we can solve by equating them
i.e =
Or, =
Or T2 = 52 min Answer
Answer:
Step-by-step explanation:
Equilateral triangle has equal sides, let the side be , then the perimeter is
Therefore:
To find the altitude , we will apply Pythagoras theorem , that is
Therefore:
take the square root of both sides