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Historyfinder
Historyfinder
25.02.2020 • 
Mathematics

Exercise
6.28
provides data on sleep depri-
vation rates of Californians and Oregonians. The proportion of California residents who reported
insucient rest or sleep during each of the preceding 30 days is 8.0%, while this proportion is 8.8%
for Oregon residents. These data are based on simple random samples of 11,545 California and
4,691 Oregon residents.
(a)
Conduct a hypothesis test to determine if these data provide strong evidence the rate of sleep
deprivation is dierent for the two states. (Reminder: check conditions)
(b)
It is possible the conclusion of the test in part (a) is incorrect. If this is the case, what type
of error was made

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