# Les10 - Question 1 1 out of 1 points Correct When the level...

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Sheet1 Page 1 Question 1 1 out of 1 points Correct When the level of confidence increases, the confidence interval Question 1 answers Selected Answer: Correct becomes wider. Correct Answer: Correct becomes wider. Feedback: Great job. Question 2 text Question 2 1 out of 1 points Correct In developing an interval estimate of the population mean, if the population standard deviation is unknown, Question 2 answers Selected Answer: Correct the sample standard deviation and t distribution can be used. Correct Answer: Correct the sample standard deviation and t distribution can be used. Feedback: Good job. When one approach is unavailable due to information or data constraints, there are usually other options Question 3 text Question 3 1 out of 1 points Correct If we change a 95% confidence interval estimate to a 99% confidence interval estimate, we can expect the Question 3 answers Selected Answer: Correct width of the confidence interval to increase.

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