Textbook ExpertVerified Tutor
10 Nov 2021
Given information
The sample size is the number of executives n=160
The sample proportion of executives who prefer trucks is p'=26%=0.26.
Step-by-step explanation
Step 1.
The formula for the margin of error or error bound is:
where is the critical z value for the required confidence level, is the sample size and are the probabilities of success and failures such that
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