Answer:
Following are the responses to the given question:
Step-by-step explanation:
For point a:
Following are the null and alternative hypotheses:
For point b:
By using the Excel we obtained the output of the 2 sample t-test that is defined in the attached file.
These point estimately are the difference among the mean for the two populations:
Answer:
178cm
Step-by-step explanation:
x=180
y=160
0.4(x+y)+42 =
0.4(180 + 160) +42 =
0.4(340)+42=
136+42=
178cm
Check the picture below.
notice chord QR is a diameter, thus the vertex at P has a right-angle by Thales theorem.
Answer:
144
Step-by-step explanation:
just split the shapes and find the area of each shape then add the answers all together
C..............................................................
