Select the correct answer. What are the x-intercepts of f(x) = x3 + 4x2 – 91 – 36,
OA. (-4,0),(-3,0),(3,0)
OB. (-1,0),(2,0),(18,0)
OC. (1,0),(2,0),(3,0)
OD. (-6,0),(2,0),(3,0)

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)?