4 + 12 +12 = 28cm
so in conclusion it is 28
Answer:
a. 5.26
Step-by-step explanation:
As, the standard deviation of the distribution of the difference between mean is 0.76 so the t score will be simply calculated by dividing the difference of means by standard deviation of the distribution of the difference between mean as hypothesized difference is zero.
t score=Xbar A- Xbar B/Sd of difference of means
t score=55-51/0.76
t score=4/0.76=5.26
Answer:
I think it will be less than 69 because the tozal mean is 41 while of A is 69 mean the values has decreased
Answer:
A=30
Step-by-step explanation:
