4. Two sisters, Beyunka and Tamu, made resolutions to save their money regularly this year. They are both going to save a certain amount of money every month.
Which sentence best describes the rates Beyunka and Tamu save money?"
Beyunka
Tamu
Dollars Saved, y
Number of
Months, x
1
2
3
$0 initial deposit
will save SS0 per month
$65
$110
$155
O A. Beyunka saves money at a rate $5 per month faster than the rate that Tamu saves
O B. Beyunka saves money at a rate $5 per month slower than the rate that Tamu saves
C Beyunka saves money at a rate $15 per month faster than the rate that Tamu
saves
D. Beyunka saves money at a rate $15 per month slower than the rate that Tamu
saves

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)?