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A survey claims that 9 out of 10 doctors recommend aspirin for their patients with headaches. A researcher thinks this is too high so a random sample of
100 doctors is obtained. Of these 100 doctors, 82 indicate that they recommend aspirin. Is 9 of 10 is too high at the .05 level?

Find the critical value.
Find the test statistic
Fine the p-value

Sagot :

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