Agallup poll in july 2015 found that 26% of the 675 coffee drinkers in the sample said they were addicted to coffee. gallup announced, "for results based on the sample of 675 coffee drinkers, one can say with 95% confidence that the maximum margin of sampling error is ±5 percentage points." (a) confidence intervals for a percent follow the form estimate ± margin of error based on the information from gallup, what is the 95% confidence interval for the percent of all coffee drinkers who would say they are addicted to coffee? (enter your answers to the nearest percent.) lower bound upper

lower bound = 21%

upper bound = 31%

Step-by-step explanation:

Let be the sample proportion.

As per given we have,

sample size : n=675

The maximum margin of sampling error with 95% confidence : E=±5%

We know that confidence interval is given by :-

The 95% confidence interval for the percent of all coffee drinkers who would say they are addicted to coffee :-

lower bound = 21%

upper bound = 31%

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation: