A market research company wishes to know how many energy drinks adults drink each week. They want to construct a 85% confidence interval with an error of no more than 0.08. A consultant has informed them that a previous study found the mean to be 7.7 energy drinks per week and found the standard deviation to be 0.7. What is the minimum sample size required to create the specified confidence interval? Round your answer up to the next integer.

the answer i think is a)

step-by-step explanation:

if this is really you s much. i only have 3 points left and i have 2 questions to ask

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

answer: 1+1

step-by-step explanation: 1+1 is at least 2