Quiz Quiz 5-Chapters 9 and 11 × ? 11 ? ·.. /kirtland.instructure com/courses/235

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Quiz Quiz 5-Chapters 9 and 11 × ? 11 ? ·.. /kirtland.instructure com/courses/235 1325/quizzes/4873637/t Question 11 0.5 pts what does "95% confidence" mean in a 95% confidence interval? O If 100 different confidence intervals are constructed, each based on a different sample of size n from the sample population, then we would expect 95 of the intervals to include the parameter and 5 to not include the parameter. O The probability that the value of the parameter lies between the lower and upper bounds of the interval is 95%. The probability that it does not is 5%. O The values of the parameter lies withing 95% of a standard devaation of the estimate. O The confidence interval includes 95% of all possible values for the parameter. Question 12 0.5 pts

Explanation / Answer

The 95% confidence means in the 95% confidence interval that there is a 0.95 probability or 95% confidence that the true population parameter would lie in that interval. Therefore B is the correct answer here.

An example of this is that suppose we are constructing a 95% confidence interval for the mean height of a class of 100 students. We took 10 students as a sample and constructed the interval as 60 inches to 72 inches. Then we can conclude here that the true mean height of the population would lie in that interval with 0.95 probability.

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