Question

A team of builders has surveyed buyers of their new homes for years. Consistently, only 48% of the buyers have indicated they were "quite satisfied" or "very satisfied" with the construction quality of their homes. The builders have adopted a revised quality inspection system to try to improve customer satisfaction. They have surveyed 400 buyers since then; these buyers seem representative, with no systematic changes from past purchasers. Of the 400 buyers, 210 indicated they were quite or very satisfied. Did they reach their goal? What is the appropriate test to perform?

Answer 1

Answer:

Explanation:

So, the hypothesis is:

H0 : p = .48 versus Ha : p≠ .48

check the picture attached for more explanation