State DMV records indicate that of all vehicles undergoing emissions testing during the previous year, 70% passed on the first try. A random sample of 200 cars tested in a particular county during the current year yields 160 that passed on the initial test. Does this suggest that the true proportion for this county during the current year differs from the previous statewide proportion? Test the relevant hypotheses using a = 0.05.

What is the cumulative frequency of students that scored half of the points on the SAT? choices: 1. none of the above/can't be determined 2. 26 3. 9 4. 55.5 5. 0.35   I already tried 2(26) and 5(0.35) but it was wrong.

According to the Pew research center 65% of US adults believe that the government should play a larger role in addressing climate change. A random sample (SRS) of 80 US adults found that 56 US adults believe that the government should play a larger role in addressing climate change. Does this indicate that population proportion of US adults who believe that the government should play a larger role in addressing climate change is MORE THAN 65%? Given: a= 0.05 level    1. List your oH and aH: (symbols and words)    2. State and Check the conditions for the test:    3. Use the information in question: Identify the hypotheses being tested: Find your SE and test statistic by hand:    4. Use the information in question: State your conclusion given 05.0 level, in a complete sentence, in the context of the problem.     5. Use the information in question. Find the 95% confidence interval by hand using: Given z*=1.96