Answer:
answer=14π
units=cm
Step-by-step explanation:
GIVEN
diameter (d) = 14 cm
radius (r) = d / 2 = 14 / 2 = 7
Now
Circumference (c)
= 2πr
= 2 * π * 7
= 14π cm
Answer:
4
Step-by-step explanation:
24 - (5 x 4)
= 24 - 20
= 4
Sarah's number is 4.
2+2 is 4 - 1 is 3 QUICK MATHS
Answer:
The value of the test statistic is 
Step-by-step explanation:
The null hypothesis is:

The alternate hypotesis is:

Our test statistic is:

In which X is the sample mean,
is the null hypothesis value,
is the standard deviation and n is the size of the sample.
In this problem:

So



The value of the test statistic is 