#### Answer

z=-1.27

#### Work Step by Step

$z=\frac{\hat{p}-p}{\sqrt{\frac{p(1-p)}{\sqrt n}}}=\frac{0.48-0.5}{\sqrt{\frac{0.5(1-0.5)}{\sqrt {1002}}}}=-1.27.$

Published by
Pearson

ISBN 10:
0321836960

ISBN 13:
978-0-32183-696-0

z=-1.27

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