The box-and-whisker plot represents the prices (in dollars) of the entrees at a restaurant. a. Find and interpret the range of the data.

The range is

The prices vary by no more than | |$

b. Describe the distribution of the data.

The lower 25% of the prices are between | |$

and | |$

the middle 50% of the prices are between | |$

and $

and the upper 25% of the prices are between $

and | |$

c. Find and interpret the interquartile range of the data.

The interquartile range is | |

The middle half of the prices vary by no more than | |$

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)?