Two researchers plan to construct a 99% confidence interval for the mean μ of a Normal population with (known) standard deviation σ. Researcher A will use a random sample of 50 individuals. Researcher B will use a random sample of 800 individuals. Then the margin of error for Researcher A's estimate is times that of Researcher B's estimate. Which number below correctly fills in the blank?

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart

8

step-by-step explanation: