Global Warming Survey.
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Is there solid evidence that the earth is getting warming? 69% of 731 male resondents answered yes and 70% of 770 female respondents answered yes. Use a 0.05 significance level to test the claim that the percentage of males who answered "yes" is less than the percentage of females who answered "yes".
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Solution Summary
The expert examines global warming survey's. Whether people think the earth is getting warmer is determined.
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Global warming survey
Is there solid evidence that the earth is getting warming? 69% of 731 male respondents answered yes and 70% of 770 female respondents answered yes. Use a 0.05 significance level to test the claim that the percentage of males who answered "yes" is less than the percentage of females who answered "yes".
Answer
The null hypothesis tested is
H0: The percentage of males who answered "yes" is not less than ...
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