Answer:
8.7 meters left or 870 cm left
0.256 is fraction... 87/340
Step-by-step explanation:
34-25-0.3=8.7 8.7 x 100=870 cm
Answer:
Step-by-step explanation:
For this case we have the following data:
represent the random sample 1 selected
represent the proportion of success for the sample 1 selected
represent the random sample 2 selected
represent the proportion of success for the sample 2 selected
We know for this case that we can use the normal approximation since for both cases we have:
We have the randomization condition and we assume that the two samples are <10% of the entire population size.
So then we can use the following distribution for the proportions:
For this case we want to find the distribution for the difference of these two proportions and we have this:
So then the dtandard deviation would be given by:
Answer:21
Step-by-step explanation:2x21=42