Answer:
The answer is given in the picture
Step-by-step explanation:
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE
Answer:
The least they will have to pay is 235 dollars.
They will have to pay 15 more dollars next year. (250 dollars)
Step-by-step explanation:
25x3=75
40x4=160
75+160=235
25x2=50
40x5=200
50+200=250
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.