Complete options are;
A) Paired t-test for means
B) Paired Z-test for means
C) Z-test for proportion
D) t-test for means
E) Z-test for means
F) t-test for proportion
Answer:
B) Paired Z-test for means
Step-by-step explanation:
We are told that the distances travelled are normally distributed.
We are also trying to find out if the average distance travelled by the Titleist Pro V1 golf balls is farther than that of the Callaway Chrome Soft golf balls.
Also, the standard deviation of both cases are known.
Thus, this is where Paired Z-test for means is used.
Answer:
2000 children
Step-by-step explanation:
Total number of children= 1268+982=2250
9u=2250
1u=2250÷9=250
Number of children who did not win any prizes= 250×8=2000
Answer: 12
Step-by-step explanation:
Lets look at multiples:
4: 8,12
6:12
We see that both have 12 in common the earliest so that’s the LCM
Answer:
53
Step-by-step explanation:
5+3=8, 53 flipped is 35, and 53-35=18