Stats 231 Final Exam with correct answers

Stats 231 Final Exam with correct answers


x-bar - ** VERIFIED ANSWERS🔰 ✔✔sample mean



mu - ** VERIFIED ANSWERS🔰 ✔✔population mean



confidence interval - ** VERIFIED ANSWERS🔰 ✔✔-the range of values within which a
population parameter is estimated to lie

-Confidence intervals that have a higher confidence level have a wider interval (easier to
catch if interval is larger)

-a higher sample size means the interval will be narrower and MOE will decrease as there is
less variability.



z-test for a proportion - ** VERIFIED ANSWERS🔰 ✔✔-claim about population proportion



z-interval for a proportion - ** VERIFIED ANSWERS🔰 ✔✔-A range of plausible values for
a population parameter.



-Population proportion.



effect size - ** VERIFIED ANSWERS🔰 ✔✔How incorrect the null model is.



t-interval for a proportion - ** VERIFIED ANSWERS🔰 ✔✔A range of plausible values for a
population parameter.



-Population mean