Suppose you are told that a 95% confidence interval for the average price of a gallon of regular gasoline in your state is from $3.36 to $3.82. use the fact that the confidence interval for the mean is in the form x − e to x + e to compute the sample mean and the maximal margin of error e. (round your answers to two decimal places.)

The sample mean = $3.59 and the margin of error is 0.23.

Step-by-step explanation:

The confidence interval for mean is given by :-

, where   is the sample mean and E is the margin of error .

Given :  A 95% confidence interval for the average price of a gallon of regular gasoline in your state is from $3.36 to $3.82.

Lower limit of confidence interval :     (1)

Upper limit of confidence interval :     (2)

Adding (1) and (2) , we get

From (1) , we have

Hence, the sample mean = $3.59 and the margin of error is 0.23.

7

step-by-step explanation:

62.5 paisa

step-by-step explanation:

4000*70 = 280000

280000-(2000*90) = 100000

4000-2400 = 1600

100000/1600 = 62.5

( give brainliest)