? Question Scenario: The UCLA Internet Report (back in February 2003) estimated that a proportion of roughly 0.75 (75%) of online homes were still using dial-up access, but claimed that the use of dial-up was declining. Was that really the case? To examine this, a follow-up study was conducted a year later in which out of a random sample of 1,308 households that had an Internet connection, 804 were connecting using a dial-up modem. Let p be the proportion of all U.S. Internet-using households that have dial-up access. Which of the following is correct: OIt is safe to use the z-test for p. O It is not safe to use the z-test for p, since the sample is not a random sample from the entire population (or cannot be considered as one). It is not safe to use the z-test for p, since n . Po is not large enough. It is not safe to use the z-test for p, since n . (1 - Po) is not large enough. Submit