Answer:
Step-by-step explanation:
We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean
For the null hypothesis,
H0: µ = 5000
For the alternative hypothesis,
H1: µ > 5000
Since the population standard deviation is given, z score would be determined from the normal distribution table. The formula is
z = (x - µ)/(σ/√n)
Where
x = sample mean
µ = population mean
σ = population standard deviation
n = number of samples
From the information given,
µ = 5000
x = 5430
σ = 600
n = 40
z = (5430 - 5000)/(600/√40) = 4.53
Looking at the normal distribution table, the probability corresponding to the z score is < 0.0001
Since alpha, 0.05 > than the p value, then we would reject the null hypothesis. Therefore, at a 5% level of significance, it can be concluded that they walked more than the mean number of 5000 steps per day.
Answer:
Here is the question attached with.
is a straight line.
is a right angled triangle.
Options 
are correct answers.
Step-by-step explanation:
⇒As 
is ⊥
so it will forms right angled triangle then 
.
⇒Measure of 
as 
as 
is the bisector of 
,meaning that is half of so 
.
⇒ is a straight line as the angles measure over it is 
.
⇒Measure of 
from linear pair concept.
As 
,plugging the values of we have .
The other two options are false as:
it is exceeding whereas is a
straight line.
- And
is not true.
As 
and 
So we have total 
answers.
The correct options are .
What figure? anyways if it is a square you simply square root the area. EX: A=81 S=9
it it is a rectangle, you must know the other side before dividing
and so on
sorry I couldn't see the figure
They can take the 30 best abd remove the 20 worst, or remove the 20 best and send on the 39 worst.
