Eight Cities Were Asked to Report Data on Fatalities in Auto

question 143

Short Answer

Eight cities were asked to report data on fatalities in auto crashes. The Department of Safety wanted to know if safety devices have an effect on mortality. The department received the following data on the number of fatalities per every 100 crashes where the vehicle was traveling over 40 m.p.h. The type of safety device was also reported. If the data were as follows, answer the questions below.
a. What is the value of SS between ?
b. What is the value of ?
c. What is the value of F obt ?
d. Would you reject H₀ , using a = 0.01?

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