A toy manufacturer wants to know how many new toys children buy each year. Assume a previous study found the variance to be 3.61. He thinks the mean is 7 toys per year. What is the minimum sample size required to ensure that the estimate has an error of at most 0.12 at the 85% level of confidence?

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:

95.03 is the answer. hope this !