7. Inference for Quantitative Data(COLON) Means
Justifying A Claim About A Population Mean Based On A Confidence Interval — Quiz
Test your understanding of justifying a claim about a population mean based on a confidence interval with 5 practice questions.
Practice Questions
Question 1
A $95\%$ confidence interval for a population mean is $(48.2, 51.8)$. Which claim about the population mean is supported by this interval?
Question 2
A student claims that a population mean is $20$ based on a $95\%$ confidence interval of $(18.1, 19.7)$. Which statement is best?
Question 3
A $90\%$ confidence interval for a population mean is $(102.4, 108.6)$. What value would be most reasonable to use when stating the mean is plausible?
Question 4
A $95\%$ confidence interval for the mean daily screen time of students is $(3.2, 4.6)$ hours. Which claim is justified by the interval?
Question 5
A $95\%$ confidence interval for a mean is $(14.8, 17.2)$. Which conclusion about the claim $\mu = 16$ is correct?