The scatter plot shows the sale price of several food
items, y, and the cost of
the ingredients used to
produce those items, x, as
well as a line that models
the data. The line is also
represented by the
equation y = 3.48x + 0.76.

The predicted sale prince of an item that has ingredients that cost $1.50 is $5.25

Agree or disagree?

Explain:

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.