Entries by Hannah Wangui

Write the claim mathematically

September 30, 2019 in /by

Question  (a) Write the claim mathematically and identify H0 and Ha. (b) Find the critical value(s) and identify the rejection region(s). (c) Find the standardized test statistic. (d) Decide whether to reject or fail to reject the null hypothesis.In a sample of 1000 home buyers, you find that 499 home buyers found their real estate agent through a friend. At α=0.08, can […]

 

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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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