Use the Following Information to Answer Questions (3) - (7)

question 29

Essay

Use the following information to answer questions (3) - (7). A survey claims that 9 out of 10 doctors recommend
aspirin for their patients with headaches. To test whether the claim is true or not, a random sample of 100 doctors is
obtained. Of these doctors, 82 indicated that they recommend aspirin for headaches. Is the claim accurate? Test with a
significance level of 0.05.
-Explain how you can determine the significance by using the calculated z-value.