3.
The table below-lists the masses and volumes of several pieces of the same type of
metal. There is a proportional relationship between the mass and the volume of the
pieces of metal.
PIECES OF METAL
Mass
(grams)
Volume
(cubic centimeters)
4.1
34.932
47.712
5.6
7.2
61.344
99.684
11.7
Determine the mass, in grams, of a piece of this metal that has a volume of
15.3 cubic centimeters. Round your answer to the nearest tenth of a gram.
Show your work,

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.