3. A study finds that 85% of teachers use the Internet to teach. A researcher claims that the percentage has recently increased. She collects a random sample of 340 teachers and finds that 302 of the teachers used the Internet to teach. 3A. What is the population proportion (p) and the sample proportion (P) for this set of data? 0.89, 0.85 0.85, 0.89 0.85, 0.85 0.89, 1.12 3B. What is the magnitude of the critical value for a one-tailed test of proportion with significance 0.10? 2.33 1.75 1.64 1.28 3C. What is the value of the test statistic to test if the population proportion is 0.85 at significance 0.10? -1.75 1.55 2.06 2.47 3D. What decision would be made for a one-tailed test that the population proportion is 0.85 at significance 0.10? Do not reject the null. Reject the null. Sometimes reject the null. Do not reject the alternative.