Age Of College Students Find The 90 Confidence Intervals For The Variance And Standard Deviation Of The Ages Of Seniors 1 (61.49 KiB) Viewed 29 times
Age of College Students Find the 90% confidence intervals for the variance and standard deviation of the ages of seniors at Oak Park College if a random sample of 26 students has a standard deviation of 2.9 years. Assume the variable is normally distributed. Use the chi-square distribution table to find any chi- square values to three decimal places. Round the final answers to one decimal place. 2 <o < Х 5 <o<
SAT Scores Estimate the variance in mean mathematics SAT scores by state, using the randomly selected scores listed below. Estimate with 95% confidence. Assume the variable is normally distributed. Use a graphing calculator and round the answers to one decimal place. 490 502 211 209 499 565 469 543 572 515 500 Send data to Excel 2 <o < Х 5
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