Answer:its $980 juss took the quiz
Step-by-step explanation
years and his sample standard deviation was 2 years.
The statement is true that the teacher in Rory school have less than five years of experience on average.
According to the question,
Sample mean, = 4
Standard deviation, s = 2
Sample number of teachers, n = 25
Test:
: μ = 5
: μ < 5
We know the formula,
→ t =
By substituting the values,
=
= -2.5
Now, the degree of freedom be:
= n - 1
= 25 - 1
= 24
By using t-table,
=
= 2.064
We can say that >
Thus the response above is correct.
Find out more information about standard deviation here:
Answer:
Teachers in his school district have less than 5 yearſ of experience on average is true.
Step-by-step explanation:
Sample mean =
Sample standard deviation = s = 2
We are supposed to to test Ha :u= 5 versus H : u < 5 using a sample of 25 teachers
n = 25
Since n<30 and population standard deviation is unknown
So, we will use t test
Formula :
t=-2.5
Degree of freedom = n-1 = 25-1 = 24
Refer the t table
t critical > t calculated
So, We are failed to reject null hypothesis
So, teachers in his school district have less than 5 yearſ of experience on average is true.
Step-by-step explanation: You know that it is a prime if the only number divisible by the number is one. If there are more numbers than 1 then it is composite.
Reflections in geometry involve flipping a shape over a line. This concept is seen in the real world during instances like mirror images, light reflected off smooth surfaces, and reflections on water bodies.
In the field of geometry, a reflection is the flipping of a shape over a line, often referred to as the mirror line. Reflections are a common occurrence in our everyday real world.
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