The Lifetime Of Inexpensive Wristwatches Of A Sample Of 25 Watches Has A Standar

the lifetime of inexpensive wristwatches of a sample of 25 watches has a standard deviation of 4.8 months. assume the variance is normally distributed. use the chi-square distribution table to find any chi-square values to three decimal places.round your final answers to one decimal place

find the 90% confidence interval for the variance and standard deviation

Need your ASSIGNMENT done? Use our paper writing service to score good grades and meet your deadlines.

Order a Similar Paper Order a Different Paper