proportion of motorists who consult their cell phone while driving A traffic officer believes that the percentage of motorists who check their cell phones while driving is different from 50%. He asks 300 motorists, of whom 130 say they use their cell phones when they drive. At the 0.01 level of significance, tell whether the officer is correct. Calculate with 4 decimals Choose: 1. the correct conclusion 2. the correct interpretation Select one: a) 1. H0 is rejected 2. It can be ensured, with 99% confidence, that the percentage of motorists who consult their cell phones while driving is different from 50%. b) 1. H0 is rejected 2. With 99% confidence, it can be ensured that the percentage of motorists who consult their cell phones while driving is not different from 50%. c) 1. H0 is not rejected 2. It can be ensured, with 99% confidence, that the percentage of motorists who consult their cell phones while driving is different from 50%. d) 1. H0 is not rejected 2. With 99% confidence, it can be ensured that the percentage of motorists who consult their cell phones while driving is not different from 50%.
p: proportion of motorists who consult their cell phone while driving
A traffic officer believes that the percentage of motorists who check their cell phones while driving is different from 50%.
He asks 300 motorists, of whom 130 say they use their cell phones when they drive.
At the 0.01 level of significance, tell whether the officer is correct. Calculate with 4 decimals
Choose:
1. the correct conclusion
2. the correct interpretation
Select one:
a)
1. H0 is rejected
2. It can be ensured, with 99% confidence, that the percentage of motorists who consult their cell phones while driving is different from 50%.
b)
1. H0 is rejected
2. With 99% confidence, it can be ensured that the percentage of motorists who consult their cell phones while driving is not different from 50%.
c)
1. H0 is not rejected
2. It can be ensured, with 99% confidence, that the percentage of motorists who consult their cell phones while driving is different from 50%.
d)
1. H0 is not rejected
2. With 99% confidence, it can be ensured that the percentage of motorists who consult their cell phones while driving is not different from 50%.
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