Question
In a recent poll of 900 randomly selected adults, a president's approval rating stood at 49%. a) Make a 95%confidence interval for his approval rating
In a recent poll of 900 randomly selected adults, a president's approval rating stood at 49%.
a) Make a 95%confidence interval for his approval rating by all adults in the country.
b) Based on the confidence interval, test the null hypothesis that 49%of the country approved of the way he was handling his job at that time.
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Anscoer Given data n 900 49 049 At ...
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Understanding Business Statistics
Authors: Stacey Jones, Tim Bergquist, Ned Freed
1st edition
1118145259, 978-1118145258
