Rani went around the laboratory where she works and measured her
coworkers' ear. circumference (in millimeters). Then she matched her results with each coworkers' age and created the following scatter plot and trend line. Assuming the line correctly models the trend in the data, what does this line's slope of 0.480 mean?

Select one:

A)On average, each 1 year increase in age was associated with a 0.48 millimeter
increase in ear circumference.

B)On average, each 1 millimeter increase in ear circumference was associated with
a 0.48 year increase in age.

C)The average age was 48 years old.

D)The average ear circumference was 0.48 millimeters

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two

Suppose the equation ||x-a|-b|=2008 has 3 distinct real roots and a not =0. find the value of b.

Abottled water distributor wants to estimate the amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company. the water bottling company’s specifications state that the standard deviation of the amount of water is equal to 0.02 gallon. a random sample of 50 bottles is selected, and the sample mean amount of water per 1-gallon bottle is 0.995 gallon a. construct a 99% confidence interval estimate for the popula-tion mean amount of water included in a 1-gallon bottle. b. on the basis of these results, do you think that the distributor has a right to complain to the water bottling company? why? c. must you assume that the population amount of water per bottle is normally distributed here? explain. d. construct a 95% confidence interval estimate. how does this change your answer to (b)?