Concept explainers
a.
Check whether there is a statistically significant difference in seat belt usage for domestic and foreign car drivers or not.
b.
Check whether there is a statistically significant difference in seat belt usage for domestic and foreign car drivers at 1% significance level or not.
c.
Explain whether the results of parts (a) and (b) are same or different.
d.
Check whether there is a statistically significant difference in seat belt usage for domestic and foreign car drivers or not.
Check whether there is a statistically significant difference in seat belt usage for domestic and foreign car drivers at 1% significance level or not.
Check whether there is effect of increasing the sample size without changing the proportions or not.
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Applied Statistics and Probability for Engineers
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