Find the 90% coinfidence interval for the variance

Reference no: EM13205120

find the 90%coinfidence interval for the variance and standard deviation for the time it takes an inspector to check a bus for the safety if a sample of 27 buses ha standard deviation of 6.8 minutes. Assume the variable is nornmally distributed.

Reference no: EM13205120

Questions Cloud

Estimate the chance of success in career : A member of a successful music band is considering leaving the band to pursue a solo career. If she stays with the band she estimates that there is a 60% chance that the band will continue to be successful and she would earn $1.7 million over the ..

Inform-persuade or entertain : After choosing a topic, the next step in speech preparation is determining your general purpose (to inform, persuade, or entertain) and then the specific purpose.

Calculate the discount of a mower that lists : Using Excel formula, calculate the discount of a mower that lists for $1,217 with the trade discount series of 15/4/1.

Compute the enrichment factor : Calculate the enrichment factor (i.e. the ratio of the diffussion rate of 235 UF6 to 238 UF6 for this method?

Find the 90% coinfidence interval for the variance : find the 90%coinfidence interval for the variance and standard deviation for the time it takes an inspector to check a bus for the safety if a sample of 27 buses ha standard deviation of 6.8 minutes. Assume the variable is nornmally distributed.

How much must the grandfather put into jerrys trust : How much must the grandfather put into Jerry's trust to enable him to receive the same amount as Tom on January 1, 2045, when they reach age 70?

National income accounting : In this way it becomes essential as well as possible or economies and the Government and they can then ensure better measures to restore the economy. What might some of these measures be?

Compute the standard reaction gibbs energy : The equilibrium constant for the dissociation of Br2 at 1600 K is K=0.255. Calculate the standard reaction Gibbs energy at this

Explain why lillian might not want to scrap the equipment : Explain why Lillian might not want to scrap the equipment.

User Account

All Pages