(Solved): Use the following sample to estimate a population mean \( \mu \). Download CSV Find the 95\% confid ...

Use the following sample to estimate a population mean \( \mu \). Download CSV Find the 95\% confidence interval about the population mean. Enter your answer as a tri-linear inequality accurate to two decimal place. For a confidence level of \( 90 \% \) with a sample size of 30 , find the critical \( t \) value. Question 6 [0/1 pt ?2 298 (i) Details Assuming the population has an approximate normal distribution, if a sample size \( n=24 \) has a sample mean \( \bar{x}=45 \) with a sample standard deviation \( s=6 \), find the margin of error at a \( 80 \% \) confidence level. Round the answer to two decimal places.