Answer:
A. Decrease the reliability level.
Step-by-step explanation:
With the same sample as the only source of information about the population, we can only make the confidence interval narrower by being less conservative about the level of confidence. The lower the level of confidence, the less reliability but the narrower the interval becomes.
If we could take a sample again, a bigger sample size tends to construct in narrower confidence intervals.
Answer:
to get which one is the best we have to bring them packages to the same terms
so to do that we have to find what each package offers per month by divided the amount by the number of months
so
160/4= 40
128/4=32
60/2=30
so the best package is
B. package 1
The probability of both balls being blue is 8/10. Why? Because if you add the number of green balls out of both urns, which you add together, will give you your denominator, then you add the number of blue balls from each bag and get the total, that will be the numerator. So,everything will equal out to 8/10.