Question

Nearsighted. It is believed that nearsightedness affects about 8% of all children. In a random sample of 194 children, 21 are nearsighted. Conduct a hypothesis test for the following question: do these data provide evidence that the 8% value is inaccurate? What are the null and alternative hypotheses? H 0 : p = Incorrect H A : p ≠ Incorrect Check the sample size to verify that we can use the normal model to answer this question. n p 0 = Incorrect (Round to one decimal place, if necessary.) n ( 1 − p 0 ) = Incorrect (Round to one decimal place, if necessary.) Calculate the standard error of the estimate. σ ˆ p = Incorrect (Round to four decimal places, if necessary.) Calculate the p-value. p-value: Incorrect (Round to four decimal places, if necessary.)

Answer 1