Entries by Hannah Wangui

A random sample of 21 waiting times

September 30, 2019 in /by

Question  A random sample of 21 waiting times (in minutes) before patients saw a medical professional in a hospital’s minor emergency department had a variance of 1.96 minutes. After a new admissions procedure was implemented, a random sample of 27 waiting times had a variance of 0.64 minute.At α=0.01 can you support the hospital’s claim that the standard deviation of […]

 

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Find the critical F-value

September 30, 2019 in /by

Question  Find the critical F-value for a two-tailed test using the indicated level of significance αand degrees of freedom d.f.N and d.f.D. α=0.05 d.f.N=20 d.f.D=60   Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code “Newclient”

 

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You work for an insurance company

September 30, 2019 in /by

Question You work for an insurance company and are studying the relationship between types of crashes and the vehicles involved. As part of your study, you randomly select 3495 vehicle crashes and organize the resulting data as shown in the contingency table. At  α=0.01,can you conclude that the type of crash depends on the type of vehicle? Identify the claim […]

 

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How many liters of the 20% solution are needed?

September 30, 2019 in /by

Question In a chemistry class,15 liters of a 14% alcohol solution must be mixed with a 20% solutionto get a 15% solution. How many liters of the 20% solution are needed?   Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code “Newclient”

 

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