A credit union wants to open a new branch. They will
only open a branch in a neighborhood if more than 10%
of the residents consider banking with them. In a random
sample of 152 neighborhood residents surveyed, 21
residents said they would consider banking with the
credit union.
Let p= the true proportion of all the residents in the
neighborhood who would consider banking with the
credit union.
Calculate the test statistic using the following values
from the earlier task. Round your answer to 4 decimal
places.
☐ 6 = 0.14
■ Po = 0.10
n = 152
Z=