Based on meteorological data for the past century, a local tv weather forecaster estimates that the region's average winter snowfall is 23", with a margin of error of ±2 inches. as- suming he used a 95% confidence interval, how should viewers interpret this news? com- ment on each of these statements:

We are 95% sure that the region's true average snowfall is between 21 and 25 inches.

Step-by-step explanation:

A confidence interval has two bounds, a lower bound and an upper bound. These bounds vary according to the margin of error M.

Lower bound: Average - M

Upper bound: Average + M

AVerage winter snowfall is 23", with a margin of error of ±2 inches.

Lower bound: 23-2 = 21 inches

Upper bound: 23+2 = 25 inches

95% confidence interval, how should viewers interpret this news?

We are 95% sure that the region's true average snowfall is between 21 and 25 inches.

the answer is the option b

the range is all real numbers

step-by-step explanation:

we know that

the absolute value parent function is equal to

see the attached figure to better understand the problem

so

a. it is v-shaped > is true

b. the range is all real numbers > is not true

because the range is the > [0,∞)

all real numbers greater than or equal to zero

c. it goes through the origin > is true

d. the domain is all real numbers > is true

step-by-step explanation:

the answers are in the images, i received 100% on this assignment. hope this !