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In: Statistics and Probability

One month before an​ election, a poll of 650 randomly selected voters showed 59% planning to...

One month before an​ election, a poll of 650 randomly selected voters showed 59% planning to vote for a certain candidate. A week later it became known that he had

lied to avoid jury duty and a new poll showed only 57​% of 1010

voters supporting him. Do these results indicate a decrease in voter support for his ​candidacy?

​a) Test an appropriate hypothesis and state your conclusion. (z = (Round to two decimal places as​ needed.)

​b) If you concluded there was a​ difference, estimate that difference with a 99​% confidence interval and interpret your interval in context.

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orchestra answered 1 year ago
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